Finding the Third Proportional to 300,572 and 710,818

Step by Step Solution

1. Step 1: Write the proportion equation
   300,572 : 710,818 = 710,818 : x
2. Step 2: Convert to fraction form
   300,572/710,818 = 710,818/x
3. Step 3: Cross multiply
   300,572x = 710,818 × 710,818
4. Step 4: Simplify right side
   300,572x = 505,262,229,124
5. Step 5: Solve for x
   x = 505,262,229,124/300,572
6. Step 6: Final answer
   x = 1,681,002.32