Finding the Third Proportional to 630,342 and 906,126.75

Step by Step Solution

1. Step 1: Write the proportion equation
   630,342 : 906,126.75 = 906,126.75 : x
2. Step 2: Convert to fraction form
   630,342/906,126.75 = 906,126.75/x
3. Step 3: Cross multiply
   630,342x = 906,126.75 × 906,126.75
4. Step 4: Simplify right side
   630,342x = 821,065,687,065.56
5. Step 5: Solve for x
   x = 821,065,687,065.56/630,342
6. Step 6: Final answer
   x = 1,302,571.76