Finding the Third Proportional to 619,321.50 and 1,360,434

Step by Step Solution

1. Step 1: Write the proportion equation
   619,321.50 : 1,360,434 = 1,360,434 : x
2. Step 2: Convert to fraction form
   619,321.50/1,360,434 = 1,360,434/x
3. Step 3: Cross multiply
   619,321.50x = 1,360,434 × 1,360,434
4. Step 4: Simplify right side
   619,321.50x = 1,850,780,668,356
5. Step 5: Solve for x
   x = 1,850,780,668,356/619,321.50
6. Step 6: Final answer
   x = 2,988,400.48