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Finding the Third Proportional to 13,462,978 and 28,978,820

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Solution

The third proportional to 13,462,978 and 28,978,820 is: 62,376,393.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,462,978 : 28,978,820 = 28,978,820 : x
  2. Step 2: Convert to fraction form
    13,462,978/28,978,820 = 28,978,820/x
  3. Step 3: Cross multiply
    13,462,978x = 28,978,820 × 28,978,820
  4. Step 4: Simplify right side
    13,462,978x = 839,772,008,592,400
  5. Step 5: Solve for x
    x = 839,772,008,592,400/13,462,978
  6. Step 6: Final answer
    x = 62,376,393.14

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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.