Finding the Third Proportional to 42,680.67 and 66,259.27

Step by Step Solution

1. Step 1: Write the proportion equation
   42,680.67 : 66,259.27 = 66,259.27 : x
2. Step 2: Convert to fraction form
   42,680.67/66,259.27 = 66,259.27/x
3. Step 3: Cross multiply
   42,680.67x = 66,259.27 × 66,259.27
4. Step 4: Simplify right side
   42,680.67x = 4,390,290,281.16
5. Step 5: Solve for x
   x = 4,390,290,281.16/42,680.67
6. Step 6: Final answer
   x = 102,863.66