Finding the Third Proportional to 100,432 and 137,715.50

Step by Step Solution

1. Step 1: Write the proportion equation
   100,432 : 137,715.50 = 137,715.50 : x
2. Step 2: Convert to fraction form
   100,432/137,715.50 = 137,715.50/x
3. Step 3: Cross multiply
   100,432x = 137,715.50 × 137,715.50
4. Step 4: Simplify right side
   100,432x = 18,965,558,940.25
5. Step 5: Solve for x
   x = 18,965,558,940.25/100,432
6. Step 6: Final answer
   x = 188,839.80