Finding the Third Proportional to 12,916.50 and 27,358.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,916.50 : 27,358.50 = 27,358.50 : x
2. Step 2: Convert to fraction form
   12,916.50/27,358.50 = 27,358.50/x
3. Step 3: Cross multiply
   12,916.50x = 27,358.50 × 27,358.50
4. Step 4: Simplify right side
   12,916.50x = 748,487,522.25
5. Step 5: Solve for x
   x = 748,487,522.25/12,916.50
6. Step 6: Final answer
   x = 57,948.17