Finding the Third Proportional to 86,258.25 and 187,704

Step by Step Solution

1. Step 1: Write the proportion equation
   86,258.25 : 187,704 = 187,704 : x
2. Step 2: Convert to fraction form
   86,258.25/187,704 = 187,704/x
3. Step 3: Cross multiply
   86,258.25x = 187,704 × 187,704
4. Step 4: Simplify right side
   86,258.25x = 35,232,791,616
5. Step 5: Solve for x
   x = 35,232,791,616/86,258.25
6. Step 6: Final answer
   x = 408,457.06