Finding the Third Proportional to 154,581.50 and 245,897.50

Step by Step Solution

1. Step 1: Write the proportion equation
   154,581.50 : 245,897.50 = 245,897.50 : x
2. Step 2: Convert to fraction form
   154,581.50/245,897.50 = 245,897.50/x
3. Step 3: Cross multiply
   154,581.50x = 245,897.50 × 245,897.50
4. Step 4: Simplify right side
   154,581.50x = 60,465,580,506.25
5. Step 5: Solve for x
   x = 60,465,580,506.25/154,581.50
6. Step 6: Final answer
   x = 391,156.64