Finding the Third Proportional to 90,353 and 139,625.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,353 : 139,625.50 = 139,625.50 : x
2. Step 2: Convert to fraction form
   90,353/139,625.50 = 139,625.50/x
3. Step 3: Cross multiply
   90,353x = 139,625.50 × 139,625.50
4. Step 4: Simplify right side
   90,353x = 19,495,280,250.25
5. Step 5: Solve for x
   x = 19,495,280,250.25/90,353
6. Step 6: Final answer
   x = 215,767.94