Finding the Third Proportional to 148,689,486 and 322,086,563

Step by Step Solution

1. Step 1: Write the proportion equation
   148,689,486 : 322,086,563 = 322,086,563 : x
2. Step 2: Convert to fraction form
   148,689,486/322,086,563 = 322,086,563/x
3. Step 3: Cross multiply
   148,689,486x = 322,086,563 × 322,086,563
4. Step 4: Simplify right side
   148,689,486x = 103,739,754,065,152,976
5. Step 5: Solve for x
   x = 103,739,754,065,152,976/148,689,486
6. Step 6: Final answer
   x = 697,693,944.99