Finding the Third Proportional to 1,008,310 and 2,215,376

Step by Step Solution

1. Step 1: Write the proportion equation
   1,008,310 : 2,215,376 = 2,215,376 : x
2. Step 2: Convert to fraction form
   1,008,310/2,215,376 = 2,215,376/x
3. Step 3: Cross multiply
   1,008,310x = 2,215,376 × 2,215,376
4. Step 4: Simplify right side
   1,008,310x = 4,907,890,821,376
5. Step 5: Solve for x
   x = 4,907,890,821,376/1,008,310
6. Step 6: Final answer
   x = 4,867,442.38