Finding the Third Proportional to 172,397,661 and 383,059,074

Step by Step Solution

1. Step 1: Write the proportion equation
   172,397,661 : 383,059,074 = 383,059,074 : x
2. Step 2: Convert to fraction form
   172,397,661/383,059,074 = 383,059,074/x
3. Step 3: Cross multiply
   172,397,661x = 383,059,074 × 383,059,074
4. Step 4: Simplify right side
   172,397,661x = 146,734,254,173,737,472
5. Step 5: Solve for x
   x = 146,734,254,173,737,472/172,397,661
6. Step 6: Final answer
   x = 851,138,311.99