Finding the Third Proportional to 630,858 and 1,344,300

Step by Step Solution

1. Step 1: Write the proportion equation
   630,858 : 1,344,300 = 1,344,300 : x
2. Step 2: Convert to fraction form
   630,858/1,344,300 = 1,344,300/x
3. Step 3: Cross multiply
   630,858x = 1,344,300 × 1,344,300
4. Step 4: Simplify right side
   630,858x = 1,807,142,490,000
5. Step 5: Solve for x
   x = 1,807,142,490,000/630,858
6. Step 6: Final answer
   x = 2,864,578.86