Finding the Third Proportional to 43,426.13 and 65,139.19

Step by Step Solution

1. Step 1: Write the proportion equation
   43,426.13 : 65,139.19 = 65,139.19 : x
2. Step 2: Convert to fraction form
   43,426.13/65,139.19 = 65,139.19/x
3. Step 3: Cross multiply
   43,426.13x = 65,139.19 × 65,139.19
4. Step 4: Simplify right side
   43,426.13x = 4,243,113,748.16
5. Step 5: Solve for x
   x = 4,243,113,748.16/43,426.13
6. Step 6: Final answer
   x = 97,708.78