Finding the Third Proportional to 172,397,654 and 383,059,054

Step by Step Solution

1. Step 1: Write the proportion equation
   172,397,654 : 383,059,054 = 383,059,054 : x
2. Step 2: Convert to fraction form
   172,397,654/383,059,054 = 383,059,054/x
3. Step 3: Cross multiply
   172,397,654x = 383,059,054 × 383,059,054
4. Step 4: Simplify right side
   172,397,654x = 146,734,238,851,374,912
5. Step 5: Solve for x
   x = 146,734,238,851,374,912/172,397,654
6. Step 6: Final answer
   x = 851,138,257.67