Finding the Third Proportional to 90,660 and 149,827.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,660 : 149,827.50 = 149,827.50 : x
2. Step 2: Convert to fraction form
   90,660/149,827.50 = 149,827.50/x
3. Step 3: Cross multiply
   90,660x = 149,827.50 × 149,827.50
4. Step 4: Simplify right side
   90,660x = 22,448,279,756.25
5. Step 5: Solve for x
   x = 22,448,279,756.25/90,660
6. Step 6: Final answer
   x = 247,609.53