Finding the Third Proportional to 172,397,672 and 383,059,088

Step by Step Solution

1. Step 1: Write the proportion equation
   172,397,672 : 383,059,088 = 383,059,088 : x
2. Step 2: Convert to fraction form
   172,397,672/383,059,088 = 383,059,088/x
3. Step 3: Cross multiply
   172,397,672x = 383,059,088 × 383,059,088
4. Step 4: Simplify right side
   172,397,672x = 146,734,264,899,391,744
5. Step 5: Solve for x
   x = 146,734,264,899,391,744/172,397,672
6. Step 6: Final answer
   x = 851,138,319.89