Finding the Third Proportional to 67,862 and 89,238.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,862 : 89,238.50 = 89,238.50 : x
2. Step 2: Convert to fraction form
   67,862/89,238.50 = 89,238.50/x
3. Step 3: Cross multiply
   67,862x = 89,238.50 × 89,238.50
4. Step 4: Simplify right side
   67,862x = 7,963,509,882.25
5. Step 5: Solve for x
   x = 7,963,509,882.25/67,862
6. Step 6: Final answer
   x = 117,348.59