Finding the Third Proportional to 1,136,880 and 2,431,287

Step by Step Solution

1. Step 1: Write the proportion equation
   1,136,880 : 2,431,287 = 2,431,287 : x
2. Step 2: Convert to fraction form
   1,136,880/2,431,287 = 2,431,287/x
3. Step 3: Cross multiply
   1,136,880x = 2,431,287 × 2,431,287
4. Step 4: Simplify right side
   1,136,880x = 5,911,156,476,369
5. Step 5: Solve for x
   x = 5,911,156,476,369/1,136,880
6. Step 6: Final answer
   x = 5,199,455.07