Finding the Third Proportional to 60,034.50 and 138,969

Step by Step Solution

1. Step 1: Write the proportion equation
   60,034.50 : 138,969 = 138,969 : x
2. Step 2: Convert to fraction form
   60,034.50/138,969 = 138,969/x
3. Step 3: Cross multiply
   60,034.50x = 138,969 × 138,969
4. Step 4: Simplify right side
   60,034.50x = 19,312,382,961
5. Step 5: Solve for x
   x = 19,312,382,961/60,034.50
6. Step 6: Final answer
   x = 321,688.08