Finding the Third Proportional to 40,272 and 90,985.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,272 : 90,985.50 = 90,985.50 : x
2. Step 2: Convert to fraction form
   40,272/90,985.50 = 90,985.50/x
3. Step 3: Cross multiply
   40,272x = 90,985.50 × 90,985.50
4. Step 4: Simplify right side
   40,272x = 8,278,361,210.25
5. Step 5: Solve for x
   x = 8,278,361,210.25/40,272
6. Step 6: Final answer
   x = 205,561.21