Finding the Third Proportional to 621,130 and 1,337,364

Step by Step Solution

1. Step 1: Write the proportion equation
   621,130 : 1,337,364 = 1,337,364 : x
2. Step 2: Convert to fraction form
   621,130/1,337,364 = 1,337,364/x
3. Step 3: Cross multiply
   621,130x = 1,337,364 × 1,337,364
4. Step 4: Simplify right side
   621,130x = 1,788,542,468,496
5. Step 5: Solve for x
   x = 1,788,542,468,496/621,130
6. Step 6: Final answer
   x = 2,879,497.80