Finding the Third Proportional to 31,900,652 and 69,977,336

Step by Step Solution

1. Step 1: Write the proportion equation
   31,900,652 : 69,977,336 = 69,977,336 : x
2. Step 2: Convert to fraction form
   31,900,652/69,977,336 = 69,977,336/x
3. Step 3: Cross multiply
   31,900,652x = 69,977,336 × 69,977,336
4. Step 4: Simplify right side
   31,900,652x = 4,896,827,553,656,896
5. Step 5: Solve for x
   x = 4,896,827,553,656,896/31,900,652
6. Step 6: Final answer
   x = 153,502,428.53