Finding the Third Proportional to 67,839.75 and 99,725.63

Step by Step Solution

1. Step 1: Write the proportion equation
   67,839.75 : 99,725.63 = 99,725.63 : x
2. Step 2: Convert to fraction form
   67,839.75/99,725.63 = 99,725.63/x
3. Step 3: Cross multiply
   67,839.75x = 99,725.63 × 99,725.63
4. Step 4: Simplify right side
   67,839.75x = 9,945,200,281.64
5. Step 5: Solve for x
   x = 9,945,200,281.64/67,839.75
6. Step 6: Final answer
   x = 146,598.42