Finding the Third Proportional to 1,485,336 and 2,165,412

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485,336 : 2,165,412 = 2,165,412 : x
2. Step 2: Convert to fraction form
   1,485,336/2,165,412 = 2,165,412/x
3. Step 3: Cross multiply
   1,485,336x = 2,165,412 × 2,165,412
4. Step 4: Simplify right side
   1,485,336x = 4,689,009,129,744
5. Step 5: Solve for x
   x = 4,689,009,129,744/1,485,336
6. Step 6: Final answer
   x = 3,156,867.62