Finding the Third Proportional to 28,640.30 and 62,585.79

Step by Step Solution

1. Step 1: Write the proportion equation
   28,640.30 : 62,585.79 = 62,585.79 : x
2. Step 2: Convert to fraction form
   28,640.30/62,585.79 = 62,585.79/x
3. Step 3: Cross multiply
   28,640.30x = 62,585.79 × 62,585.79
4. Step 4: Simplify right side
   28,640.30x = 3,916,980,992.58
5. Step 5: Solve for x
   x = 3,916,980,992.58/28,640.30
6. Step 6: Final answer
   x = 136,764.65