Finding the Third Proportional to 262,246 and 391,750.50

Step by Step Solution

1. Step 1: Write the proportion equation
   262,246 : 391,750.50 = 391,750.50 : x
2. Step 2: Convert to fraction form
   262,246/391,750.50 = 391,750.50/x
3. Step 3: Cross multiply
   262,246x = 391,750.50 × 391,750.50
4. Step 4: Simplify right side
   262,246x = 153,468,454,250.25
5. Step 5: Solve for x
   x = 153,468,454,250.25/262,246
6. Step 6: Final answer
   x = 585,207.99