Finding the Third Proportional to 174,985.50 and 271,470

Step by Step Solution

1. Step 1: Write the proportion equation
   174,985.50 : 271,470 = 271,470 : x
2. Step 2: Convert to fraction form
   174,985.50/271,470 = 271,470/x
3. Step 3: Cross multiply
   174,985.50x = 271,470 × 271,470
4. Step 4: Simplify right side
   174,985.50x = 73,695,960,900
5. Step 5: Solve for x
   x = 73,695,960,900/174,985.50
6. Step 6: Final answer
   x = 421,154.67