Finding the Third Proportional to 148,073,064 and 216,388,398

Step by Step Solution

1. Step 1: Write the proportion equation
   148,073,064 : 216,388,398 = 216,388,398 : x
2. Step 2: Convert to fraction form
   148,073,064/216,388,398 = 216,388,398/x
3. Step 3: Cross multiply
   148,073,064x = 216,388,398 × 216,388,398
4. Step 4: Simplify right side
   148,073,064x = 46,823,938,789,006,400
5. Step 5: Solve for x
   x = 46,823,938,789,006,400/148,073,064
6. Step 6: Final answer
   x = 316,221,853.75