Finding the Third Proportional to 12,359.50 and 26,663.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,359.50 : 26,663.50 = 26,663.50 : x
2. Step 2: Convert to fraction form
   12,359.50/26,663.50 = 26,663.50/x
3. Step 3: Cross multiply
   12,359.50x = 26,663.50 × 26,663.50
4. Step 4: Simplify right side
   12,359.50x = 710,942,232.25
5. Step 5: Solve for x
   x = 710,942,232.25/12,359.50
6. Step 6: Final answer
   x = 57,521.93