Finding the Third Proportional to 654,878 and 1,431,487

Step by Step Solution

1. Step 1: Write the proportion equation
   654,878 : 1,431,487 = 1,431,487 : x
2. Step 2: Convert to fraction form
   654,878/1,431,487 = 1,431,487/x
3. Step 3: Cross multiply
   654,878x = 1,431,487 × 1,431,487
4. Step 4: Simplify right side
   654,878x = 2,049,155,031,169
5. Step 5: Solve for x
   x = 2,049,155,031,169/654,878
6. Step 6: Final answer
   x = 3,129,063.78