Finding the Third Proportional to 124,639 and 174,889.50

Step by Step Solution

1. Step 1: Write the proportion equation
   124,639 : 174,889.50 = 174,889.50 : x
2. Step 2: Convert to fraction form
   124,639/174,889.50 = 174,889.50/x
3. Step 3: Cross multiply
   124,639x = 174,889.50 × 174,889.50
4. Step 4: Simplify right side
   124,639x = 30,586,337,210.25
5. Step 5: Solve for x
   x = 30,586,337,210.25/124,639
6. Step 6: Final answer
   x = 245,399.41