Finding the Third Proportional to 156,325 and 242,209.50

Step by Step Solution

1. Step 1: Write the proportion equation
   156,325 : 242,209.50 = 242,209.50 : x
2. Step 2: Convert to fraction form
   156,325/242,209.50 = 242,209.50/x
3. Step 3: Cross multiply
   156,325x = 242,209.50 × 242,209.50
4. Step 4: Simplify right side
   156,325x = 58,665,441,890.25
5. Step 5: Solve for x
   x = 58,665,441,890.25/156,325
6. Step 6: Final answer
   x = 375,278.69