Finding the Third Proportional to 174,272.50 and 357,981.50

Step by Step Solution

1. Step 1: Write the proportion equation
   174,272.50 : 357,981.50 = 357,981.50 : x
2. Step 2: Convert to fraction form
   174,272.50/357,981.50 = 357,981.50/x
3. Step 3: Cross multiply
   174,272.50x = 357,981.50 × 357,981.50
4. Step 4: Simplify right side
   174,272.50x = 128,150,754,342.25
5. Step 5: Solve for x
   x = 128,150,754,342.25/174,272.50
6. Step 6: Final answer
   x = 735,346.97