Finding the Third Proportional to 172,550 and 353,468

Step by Step Solution

1. Step 1: Write the proportion equation
   172,550 : 353,468 = 353,468 : x
2. Step 2: Convert to fraction form
   172,550/353,468 = 353,468/x
3. Step 3: Cross multiply
   172,550x = 353,468 × 353,468
4. Step 4: Simplify right side
   172,550x = 124,939,627,024
5. Step 5: Solve for x
   x = 124,939,627,024/172,550
6. Step 6: Final answer
   x = 724,077.82