Finding the Third Proportional to 673,218 and 1,451,412

Step by Step Solution

1. Step 1: Write the proportion equation
   673,218 : 1,451,412 = 1,451,412 : x
2. Step 2: Convert to fraction form
   673,218/1,451,412 = 1,451,412/x
3. Step 3: Cross multiply
   673,218x = 1,451,412 × 1,451,412
4. Step 4: Simplify right side
   673,218x = 2,106,596,793,744
5. Step 5: Solve for x
   x = 2,106,596,793,744/673,218
6. Step 6: Final answer
   x = 3,129,145.08