Finding the Third Proportional to 516,321 and 1,118,448

Step by Step Solution

1. Step 1: Write the proportion equation
   516,321 : 1,118,448 = 1,118,448 : x
2. Step 2: Convert to fraction form
   516,321/1,118,448 = 1,118,448/x
3. Step 3: Cross multiply
   516,321x = 1,118,448 × 1,118,448
4. Step 4: Simplify right side
   516,321x = 1,250,925,928,704
5. Step 5: Solve for x
   x = 1,250,925,928,704/516,321
6. Step 6: Final answer
   x = 2,422,767.87