Finding the Third Proportional to 12,345.75 and 25,876.13

Step by Step Solution

1. Step 1: Write the proportion equation
   12,345.75 : 25,876.13 = 25,876.13 : x
2. Step 2: Convert to fraction form
   12,345.75/25,876.13 = 25,876.13/x
3. Step 3: Cross multiply
   12,345.75x = 25,876.13 × 25,876.13
4. Step 4: Simplify right side
   12,345.75x = 669,573,845.02
5. Step 5: Solve for x
   x = 669,573,845.02/12,345.75
6. Step 6: Final answer
   x = 54,235.17