Finding the Third Proportional to 90,765 and 141,120

Step by Step Solution

1. Step 1: Write the proportion equation
   90,765 : 141,120 = 141,120 : x
2. Step 2: Convert to fraction form
   90,765/141,120 = 141,120/x
3. Step 3: Cross multiply
   90,765x = 141,120 × 141,120
4. Step 4: Simplify right side
   90,765x = 19,914,854,400
5. Step 5: Solve for x
   x = 19,914,854,400/90,765
6. Step 6: Final answer
   x = 219,411.17