Finding the Third Proportional to 90,997.50 and 140,292

Step by Step Solution

1. Step 1: Write the proportion equation
   90,997.50 : 140,292 = 140,292 : x
2. Step 2: Convert to fraction form
   90,997.50/140,292 = 140,292/x
3. Step 3: Cross multiply
   90,997.50x = 140,292 × 140,292
4. Step 4: Simplify right side
   90,997.50x = 19,681,845,264
5. Step 5: Solve for x
   x = 19,681,845,264/90,997.50
6. Step 6: Final answer
   x = 216,289.96