Finding the Third Proportional to 172,156.50 and 251,628

Step by Step Solution

1. Step 1: Write the proportion equation
   172,156.50 : 251,628 = 251,628 : x
2. Step 2: Convert to fraction form
   172,156.50/251,628 = 251,628/x
3. Step 3: Cross multiply
   172,156.50x = 251,628 × 251,628
4. Step 4: Simplify right side
   172,156.50x = 63,316,650,384
5. Step 5: Solve for x
   x = 63,316,650,384/172,156.50
6. Step 6: Final answer
   x = 367,785.42