Finding the Third Proportional to 90,088 and 141,312

Step by Step Solution

1. Step 1: Write the proportion equation
   90,088 : 141,312 = 141,312 : x
2. Step 2: Convert to fraction form
   90,088/141,312 = 141,312/x
3. Step 3: Cross multiply
   90,088x = 141,312 × 141,312
4. Step 4: Simplify right side
   90,088x = 19,969,081,344
5. Step 5: Solve for x
   x = 19,969,081,344/90,088
6. Step 6: Final answer
   x = 221,661.95