Finding the Third Proportional to 15,862.50 and 34,870.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,862.50 : 34,870.50 = 34,870.50 : x
2. Step 2: Convert to fraction form
   15,862.50/34,870.50 = 34,870.50/x
3. Step 3: Cross multiply
   15,862.50x = 34,870.50 × 34,870.50
4. Step 4: Simplify right side
   15,862.50x = 1,215,951,770.25
5. Step 5: Solve for x
   x = 1,215,951,770.25/15,862.50
6. Step 6: Final answer
   x = 76,655.75