Finding the Third Proportional to 55,063 and 87,517.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,063 : 87,517.50 = 87,517.50 : x
2. Step 2: Convert to fraction form
   55,063/87,517.50 = 87,517.50/x
3. Step 3: Cross multiply
   55,063x = 87,517.50 × 87,517.50
4. Step 4: Simplify right side
   55,063x = 7,659,312,806.25
5. Step 5: Solve for x
   x = 7,659,312,806.25/55,063
6. Step 6: Final answer
   x = 139,100.90