Finding the Third Proportional to 90,090 and 141,315

Step by Step Solution

1. Step 1: Write the proportion equation
   90,090 : 141,315 = 141,315 : x
2. Step 2: Convert to fraction form
   90,090/141,315 = 141,315/x
3. Step 3: Cross multiply
   90,090x = 141,315 × 141,315
4. Step 4: Simplify right side
   90,090x = 19,969,929,225
5. Step 5: Solve for x
   x = 19,969,929,225/90,090
6. Step 6: Final answer
   x = 221,666.44