Finding the Third Proportional to 451,630.69 and 619,288.88

Step by Step Solution

1. Step 1: Write the proportion equation
   451,630.69 : 619,288.88 = 619,288.88 : x
2. Step 2: Convert to fraction form
   451,630.69/619,288.88 = 619,288.88/x
3. Step 3: Cross multiply
   451,630.69x = 619,288.88 × 619,288.88
4. Step 4: Simplify right side
   451,630.69x = 383,518,710,698.77
5. Step 5: Solve for x
   x = 383,518,710,698.77/451,630.69
6. Step 6: Final answer
   x = 849,186.56