Finding the Third Proportional to 172,245 and 253,264.50

Step by Step Solution

1. Step 1: Write the proportion equation
   172,245 : 253,264.50 = 253,264.50 : x
2. Step 2: Convert to fraction form
   172,245/253,264.50 = 253,264.50/x
3. Step 3: Cross multiply
   172,245x = 253,264.50 × 253,264.50
4. Step 4: Simplify right side
   172,245x = 64,142,906,960.25
5. Step 5: Solve for x
   x = 64,142,906,960.25/172,245
6. Step 6: Final answer
   x = 372,393.43