Finding the Third Proportional to 67,807.69 and 147,666.09

Step by Step Solution

1. Step 1: Write the proportion equation
   67,807.69 : 147,666.09 = 147,666.09 : x
2. Step 2: Convert to fraction form
   67,807.69/147,666.09 = 147,666.09/x
3. Step 3: Cross multiply
   67,807.69x = 147,666.09 × 147,666.09
4. Step 4: Simplify right side
   67,807.69x = 21,805,275,243.38
5. Step 5: Solve for x
   x = 21,805,275,243.38/67,807.69
6. Step 6: Final answer
   x = 321,575.27