Finding the Third Proportional to 12,499.31 and 14,964.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,499.31 : 14,964.75 = 14,964.75 : x
2. Step 2: Convert to fraction form
   12,499.31/14,964.75 = 14,964.75/x
3. Step 3: Cross multiply
   12,499.31x = 14,964.75 × 14,964.75
4. Step 4: Simplify right side
   12,499.31x = 223,943,742.56
5. Step 5: Solve for x
   x = 223,943,742.56/12,499.31
6. Step 6: Final answer
   x = 17,916.48