Finding the Third Proportional to 492,603 and 1,077,789

Step by Step Solution

1. Step 1: Write the proportion equation
   492,603 : 1,077,789 = 1,077,789 : x
2. Step 2: Convert to fraction form
   492,603/1,077,789 = 1,077,789/x
3. Step 3: Cross multiply
   492,603x = 1,077,789 × 1,077,789
4. Step 4: Simplify right side
   492,603x = 1,161,629,128,521
5. Step 5: Solve for x
   x = 1,161,629,128,521/492,603
6. Step 6: Final answer
   x = 2,358,144.65