Finding the Third Proportional to 603,868.50 and 1,302,315

Step by Step Solution

1. Step 1: Write the proportion equation
   603,868.50 : 1,302,315 = 1,302,315 : x
2. Step 2: Convert to fraction form
   603,868.50/1,302,315 = 1,302,315/x
3. Step 3: Cross multiply
   603,868.50x = 1,302,315 × 1,302,315
4. Step 4: Simplify right side
   603,868.50x = 1,696,024,359,225
5. Step 5: Solve for x
   x = 1,696,024,359,225/603,868.50
6. Step 6: Final answer
   x = 2,808,598.82