Finding the Third Proportional to 28,815.75 and 62,680.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,815.75 : 62,680.50 = 62,680.50 : x
2. Step 2: Convert to fraction form
   28,815.75/62,680.50 = 62,680.50/x
3. Step 3: Cross multiply
   28,815.75x = 62,680.50 × 62,680.50
4. Step 4: Simplify right side
   28,815.75x = 3,928,845,080.25
5. Step 5: Solve for x
   x = 3,928,845,080.25/28,815.75
6. Step 6: Final answer
   x = 136,343.67