Finding the Third Proportional to 285,103.50 and 617,262

Step by Step Solution

1. Step 1: Write the proportion equation
   285,103.50 : 617,262 = 617,262 : x
2. Step 2: Convert to fraction form
   285,103.50/617,262 = 617,262/x
3. Step 3: Cross multiply
   285,103.50x = 617,262 × 617,262
4. Step 4: Simplify right side
   285,103.50x = 381,012,376,644
5. Step 5: Solve for x
   x = 381,012,376,644/285,103.50
6. Step 6: Final answer
   x = 1,336,400.21