Finding the Third Proportional to 12,728,934 and 28,338,978

Step by Step Solution

1. Step 1: Write the proportion equation
   12,728,934 : 28,338,978 = 28,338,978 : x
2. Step 2: Convert to fraction form
   12,728,934/28,338,978 = 28,338,978/x
3. Step 3: Cross multiply
   12,728,934x = 28,338,978 × 28,338,978
4. Step 4: Simplify right side
   12,728,934x = 803,097,674,084,484
5. Step 5: Solve for x
   x = 803,097,674,084,484/12,728,934
6. Step 6: Final answer
   x = 63,092,296.19