Finding the Third Proportional to 12,916.31 and 28,373.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,916.31 : 28,373.72 = 28,373.72 : x
2. Step 2: Convert to fraction form
   12,916.31/28,373.72 = 28,373.72/x
3. Step 3: Cross multiply
   12,916.31x = 28,373.72 × 28,373.72
4. Step 4: Simplify right side
   12,916.31x = 805,067,915.70
5. Step 5: Solve for x
   x = 805,067,915.70/12,916.31
6. Step 6: Final answer
   x = 62,329.55