Finding the Third Proportional to 43,665.19 and 67,631.63

Step by Step Solution

1. Step 1: Write the proportion equation
   43,665.19 : 67,631.63 = 67,631.63 : x
2. Step 2: Convert to fraction form
   43,665.19/67,631.63 = 67,631.63/x
3. Step 3: Cross multiply
   43,665.19x = 67,631.63 × 67,631.63
4. Step 4: Simplify right side
   43,665.19x = 4,574,036,700.14
5. Step 5: Solve for x
   x = 4,574,036,700.14/43,665.19
6. Step 6: Final answer
   x = 104,752.48