Finding the Third Proportional to 43,007.63 and 65,638.69

Step by Step Solution

1. Step 1: Write the proportion equation
   43,007.63 : 65,638.69 = 65,638.69 : x
2. Step 2: Convert to fraction form
   43,007.63/65,638.69 = 65,638.69/x
3. Step 3: Cross multiply
   43,007.63x = 65,638.69 × 65,638.69
4. Step 4: Simplify right side
   43,007.63x = 4,308,437,296.72
5. Step 5: Solve for x
   x = 4,308,437,296.72/43,007.63
6. Step 6: Final answer
   x = 100,178.45