Finding the Third Proportional to 89,727.50 and 130,415

Step by Step Solution

1. Step 1: Write the proportion equation
   89,727.50 : 130,415 = 130,415 : x
2. Step 2: Convert to fraction form
   89,727.50/130,415 = 130,415/x
3. Step 3: Cross multiply
   89,727.50x = 130,415 × 130,415
4. Step 4: Simplify right side
   89,727.50x = 17,008,072,225
5. Step 5: Solve for x
   x = 17,008,072,225/89,727.50
6. Step 6: Final answer
   x = 189,552.50