Finding the Third Proportional to 12,498.50 and 26,402.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,498.50 : 26,402.50 = 26,402.50 : x
2. Step 2: Convert to fraction form
   12,498.50/26,402.50 = 26,402.50/x
3. Step 3: Cross multiply
   12,498.50x = 26,402.50 × 26,402.50
4. Step 4: Simplify right side
   12,498.50x = 697,092,006.25
5. Step 5: Solve for x
   x = 697,092,006.25/12,498.50
6. Step 6: Final answer
   x = 55,774.05