Finding the Third Proportional to 516,456 and 1,107,621

Step by Step Solution

1. Step 1: Write the proportion equation
   516,456 : 1,107,621 = 1,107,621 : x
2. Step 2: Convert to fraction form
   516,456/1,107,621 = 1,107,621/x
3. Step 3: Cross multiply
   516,456x = 1,107,621 × 1,107,621
4. Step 4: Simplify right side
   516,456x = 1,226,824,279,641
5. Step 5: Solve for x
   x = 1,226,824,279,641/516,456
6. Step 6: Final answer
   x = 2,375,467.18