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Finding the Third Proportional to 330,978 and 714,429

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Solution

The third proportional to 330,978 and 714,429 is: 1,542,123.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,978 : 714,429 = 714,429 : x
  2. Step 2: Convert to fraction form
    330,978/714,429 = 714,429/x
  3. Step 3: Cross multiply
    330,978x = 714,429 × 714,429
  4. Step 4: Simplify right side
    330,978x = 510,408,796,041
  5. Step 5: Solve for x
    x = 510,408,796,041/330,978
  6. Step 6: Final answer
    x = 1,542,123.03

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