Finding the Third Proportional to 81,001.69 and 174,420.56

Step by Step Solution

1. Step 1: Write the proportion equation
   81,001.69 : 174,420.56 = 174,420.56 : x
2. Step 2: Convert to fraction form
   81,001.69/174,420.56 = 174,420.56/x
3. Step 3: Cross multiply
   81,001.69x = 174,420.56 × 174,420.56
4. Step 4: Simplify right side
   81,001.69x = 30,422,532,622.82
5. Step 5: Solve for x
   x = 30,422,532,622.82/81,001.69
6. Step 6: Final answer
   x = 375,579.00