Finding the Third Proportional to 157,543.50 and 242,156

Step by Step Solution

1. Step 1: Write the proportion equation
   157,543.50 : 242,156 = 242,156 : x
2. Step 2: Convert to fraction form
   157,543.50/242,156 = 242,156/x
3. Step 3: Cross multiply
   157,543.50x = 242,156 × 242,156
4. Step 4: Simplify right side
   157,543.50x = 58,639,528,336
5. Step 5: Solve for x
   x = 58,639,528,336/157,543.50
6. Step 6: Final answer
   x = 372,211.66