Finding the Third Proportional to 245,821.50 and 370,980

Step by Step Solution

1. Step 1: Write the proportion equation
   245,821.50 : 370,980 = 370,980 : x
2. Step 2: Convert to fraction form
   245,821.50/370,980 = 370,980/x
3. Step 3: Cross multiply
   245,821.50x = 370,980 × 370,980
4. Step 4: Simplify right side
   245,821.50x = 137,626,160,400
5. Step 5: Solve for x
   x = 137,626,160,400/245,821.50
6. Step 6: Final answer
   x = 559,862.18