Finding the Third Proportional to 1,215,624 and 2,645,304

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215,624 : 2,645,304 = 2,645,304 : x
2. Step 2: Convert to fraction form
   1,215,624/2,645,304 = 2,645,304/x
3. Step 3: Cross multiply
   1,215,624x = 2,645,304 × 2,645,304
4. Step 4: Simplify right side
   1,215,624x = 6,997,633,252,416
5. Step 5: Solve for x
   x = 6,997,633,252,416/1,215,624
6. Step 6: Final answer
   x = 5,756,412.55