Finding the Third Proportional to 119,720.50 and 174,315.50

Step by Step Solution

1. Step 1: Write the proportion equation
   119,720.50 : 174,315.50 = 174,315.50 : x
2. Step 2: Convert to fraction form
   119,720.50/174,315.50 = 174,315.50/x
3. Step 3: Cross multiply
   119,720.50x = 174,315.50 × 174,315.50
4. Step 4: Simplify right side
   119,720.50x = 30,385,893,540.25
5. Step 5: Solve for x
   x = 30,385,893,540.25/119,720.50
6. Step 6: Final answer
   x = 253,806.94