Finding the Third Proportional to 87,487.50 and 135,726

Step by Step Solution

1. Step 1: Write the proportion equation
   87,487.50 : 135,726 = 135,726 : x
2. Step 2: Convert to fraction form
   87,487.50/135,726 = 135,726/x
3. Step 3: Cross multiply
   87,487.50x = 135,726 × 135,726
4. Step 4: Simplify right side
   87,487.50x = 18,421,547,076
5. Step 5: Solve for x
   x = 18,421,547,076/87,487.50
6. Step 6: Final answer
   x = 210,562.05