Finding the Third Proportional to 245,374.50 and 359,959.50

Step by Step Solution

1. Step 1: Write the proportion equation
   245,374.50 : 359,959.50 = 359,959.50 : x
2. Step 2: Convert to fraction form
   245,374.50/359,959.50 = 359,959.50/x
3. Step 3: Cross multiply
   245,374.50x = 359,959.50 × 359,959.50
4. Step 4: Simplify right side
   245,374.50x = 129,570,841,640.25
5. Step 5: Solve for x
   x = 129,570,841,640.25/245,374.50
6. Step 6: Final answer
   x = 528,053.41