Finding the Third Proportional to 40,238.25 and 86,612.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,238.25 : 86,612.50 = 86,612.50 : x
2. Step 2: Convert to fraction form
   40,238.25/86,612.50 = 86,612.50/x
3. Step 3: Cross multiply
   40,238.25x = 86,612.50 × 86,612.50
4. Step 4: Simplify right side
   40,238.25x = 7,501,725,156.25
5. Step 5: Solve for x
   x = 7,501,725,156.25/40,238.25
6. Step 6: Final answer
   x = 186,432.69