Finding the Third Proportional to 31,987,850 and 69,072,762

Step by Step Solution

1. Step 1: Write the proportion equation
   31,987,850 : 69,072,762 = 69,072,762 : x
2. Step 2: Convert to fraction form
   31,987,850/69,072,762 = 69,072,762/x
3. Step 3: Cross multiply
   31,987,850x = 69,072,762 × 69,072,762
4. Step 4: Simplify right side
   31,987,850x = 4,771,046,450,308,644
5. Step 5: Solve for x
   x = 4,771,046,450,308,644/31,987,850
6. Step 6: Final answer
   x = 149,151,832.66