Finding the Third Proportional to 154,582.50 and 245,899.50

Step by Step Solution

1. Step 1: Write the proportion equation
   154,582.50 : 245,899.50 = 245,899.50 : x
2. Step 2: Convert to fraction form
   154,582.50/245,899.50 = 245,899.50/x
3. Step 3: Cross multiply
   154,582.50x = 245,899.50 × 245,899.50
4. Step 4: Simplify right side
   154,582.50x = 60,466,564,100.25
5. Step 5: Solve for x
   x = 60,466,564,100.25/154,582.50
6. Step 6: Final answer
   x = 391,160.47