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Finding the Third Proportional to 28,918 and 63,126

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Solution

The third proportional to 28,918 and 63,126 is: 137,799.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,918 : 63,126 = 63,126 : x
  2. Step 2: Convert to fraction form
    28,918/63,126 = 63,126/x
  3. Step 3: Cross multiply
    28,918x = 63,126 × 63,126
  4. Step 4: Simplify right side
    28,918x = 3,984,891,876
  5. Step 5: Solve for x
    x = 3,984,891,876/28,918
  6. Step 6: Final answer
    x = 137,799.71

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.