Finding the Third Proportional to 621,132 and 1,337,368

Step by Step Solution

1. Step 1: Write the proportion equation
   621,132 : 1,337,368 = 1,337,368 : x
2. Step 2: Convert to fraction form
   621,132/1,337,368 = 1,337,368/x
3. Step 3: Cross multiply
   621,132x = 1,337,368 × 1,337,368
4. Step 4: Simplify right side
   621,132x = 1,788,553,167,424
5. Step 5: Solve for x
   x = 1,788,553,167,424/621,132
6. Step 6: Final answer
   x = 2,879,505.75