Finding the Third Proportional to 160,991,710 and 251,053,499

Step by Step Solution

1. Step 1: Write the proportion equation
   160,991,710 : 251,053,499 = 251,053,499 : x
2. Step 2: Convert to fraction form
   160,991,710/251,053,499 = 251,053,499/x
3. Step 3: Cross multiply
   160,991,710x = 251,053,499 × 251,053,499
4. Step 4: Simplify right side
   160,991,710x = 63,027,859,360,143,000
5. Step 5: Solve for x
   x = 63,027,859,360,143,000/160,991,710
6. Step 6: Final answer
   x = 391,497,545.81