Finding the Third Proportional to 80,288.72 and 174,876.47

Step by Step Solution

1. Step 1: Write the proportion equation
   80,288.72 : 174,876.47 = 174,876.47 : x
2. Step 2: Convert to fraction form
   80,288.72/174,876.47 = 174,876.47/x
3. Step 3: Cross multiply
   80,288.72x = 174,876.47 × 174,876.47
4. Step 4: Simplify right side
   80,288.72x = 30,581,779,322.47
5. Step 5: Solve for x
   x = 30,581,779,322.47/80,288.72
6. Step 6: Final answer
   x = 380,897.59