Finding the Third Proportional to 630,603 and 906,538.50

Step by Step Solution

1. Step 1: Write the proportion equation
   630,603 : 906,538.50 = 906,538.50 : x
2. Step 2: Convert to fraction form
   630,603/906,538.50 = 906,538.50/x
3. Step 3: Cross multiply
   630,603x = 906,538.50 × 906,538.50
4. Step 4: Simplify right side
   630,603x = 821,812,051,982.25
5. Step 5: Solve for x
   x = 821,812,051,982.25/630,603
6. Step 6: Final answer
   x = 1,303,216.21