Finding the Third Proportional to 40,320 and 86,484

Step by Step Solution

1. Step 1: Write the proportion equation
   40,320 : 86,484 = 86,484 : x
2. Step 2: Convert to fraction form
   40,320/86,484 = 86,484/x
3. Step 3: Cross multiply
   40,320x = 86,484 × 86,484
4. Step 4: Simplify right side
   40,320x = 7,479,482,256
5. Step 5: Solve for x
   x = 7,479,482,256/40,320
6. Step 6: Final answer
   x = 185,503.03