Finding the Third Proportional to 329,443 and 719,300

Step by Step Solution

1. Step 1: Write the proportion equation
   329,443 : 719,300 = 719,300 : x
2. Step 2: Convert to fraction form
   329,443/719,300 = 719,300/x
3. Step 3: Cross multiply
   329,443x = 719,300 × 719,300
4. Step 4: Simplify right side
   329,443x = 517,392,490,000
5. Step 5: Solve for x
   x = 517,392,490,000/329,443
6. Step 6: Final answer
   x = 1,570,506.86