Finding the Third Proportional to 66,475.69 and 142,291.69

Step by Step Solution

1. Step 1: Write the proportion equation
   66,475.69 : 142,291.69 = 142,291.69 : x
2. Step 2: Convert to fraction form
   66,475.69/142,291.69 = 142,291.69/x
3. Step 3: Cross multiply
   66,475.69x = 142,291.69 × 142,291.69
4. Step 4: Simplify right side
   66,475.69x = 20,246,924,331.60
5. Step 5: Solve for x
   x = 20,246,924,331.60/66,475.69
6. Step 6: Final answer
   x = 304,576.38