Finding the Third Proportional to 28,777.50 and 62,789.63

Step by Step Solution

1. Step 1: Write the proportion equation
   28,777.50 : 62,789.63 = 62,789.63 : x
2. Step 2: Convert to fraction form
   28,777.50/62,789.63 = 62,789.63/x
3. Step 3: Cross multiply
   28,777.50x = 62,789.63 × 62,789.63
4. Step 4: Simplify right side
   28,777.50x = 3,942,537,007.64
5. Step 5: Solve for x
   x = 3,942,537,007.64/28,777.50
6. Step 6: Final answer
   x = 137,000.68