Finding the Third Proportional to 90,724 and 141,053

Step by Step Solution

1. Step 1: Write the proportion equation
   90,724 : 141,053 = 141,053 : x
2. Step 2: Convert to fraction form
   90,724/141,053 = 141,053/x
3. Step 3: Cross multiply
   90,724x = 141,053 × 141,053
4. Step 4: Simplify right side
   90,724x = 19,895,948,809
5. Step 5: Solve for x
   x = 19,895,948,809/90,724
6. Step 6: Final answer
   x = 219,301.94