Finding the Third Proportional to 43,061.63 and 68,743.69

Step by Step Solution

1. Step 1: Write the proportion equation
   43,061.63 : 68,743.69 = 68,743.69 : x
2. Step 2: Convert to fraction form
   43,061.63/68,743.69 = 68,743.69/x
3. Step 3: Cross multiply
   43,061.63x = 68,743.69 × 68,743.69
4. Step 4: Simplify right side
   43,061.63x = 4,725,694,571.10
5. Step 5: Solve for x
   x = 4,725,694,571.10/43,061.63
6. Step 6: Final answer
   x = 109,742.60