Finding the Third Proportional to 14,139.56 and 21,146.06

Step by Step Solution

1. Step 1: Write the proportion equation
   14,139.56 : 21,146.06 = 21,146.06 : x
2. Step 2: Convert to fraction form
   14,139.56/21,146.06 = 21,146.06/x
3. Step 3: Cross multiply
   14,139.56x = 21,146.06 × 21,146.06
4. Step 4: Simplify right side
   14,139.56x = 447,155,959.25
5. Step 5: Solve for x
   x = 447,155,959.25/14,139.56
6. Step 6: Final answer
   x = 31,624.46