Finding the Third Proportional to 43,229.56 and 65,420.99

Step by Step Solution

1. Step 1: Write the proportion equation
   43,229.56 : 65,420.99 = 65,420.99 : x
2. Step 2: Convert to fraction form
   43,229.56/65,420.99 = 65,420.99/x
3. Step 3: Cross multiply
   43,229.56x = 65,420.99 × 65,420.99
4. Step 4: Simplify right side
   43,229.56x = 4,279,905,516.03
5. Step 5: Solve for x
   x = 4,279,905,516.03/43,229.56
6. Step 6: Final answer
   x = 99,004.15