Finding the Third Proportional to 11,915.50 and 26,018.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,915.50 : 26,018.50 = 26,018.50 : x
2. Step 2: Convert to fraction form
   11,915.50/26,018.50 = 26,018.50/x
3. Step 3: Cross multiply
   11,915.50x = 26,018.50 × 26,018.50
4. Step 4: Simplify right side
   11,915.50x = 676,962,342.25
5. Step 5: Solve for x
   x = 676,962,342.25/11,915.50
6. Step 6: Final answer
   x = 56,813.59