Finding the Third Proportional to 90,432 and 137,752

Step by Step Solution

1. Step 1: Write the proportion equation
   90,432 : 137,752 = 137,752 : x
2. Step 2: Convert to fraction form
   90,432/137,752 = 137,752/x
3. Step 3: Cross multiply
   90,432x = 137,752 × 137,752
4. Step 4: Simplify right side
   90,432x = 18,975,613,504
5. Step 5: Solve for x
   x = 18,975,613,504/90,432
6. Step 6: Final answer
   x = 209,832.95