Finding the Third Proportional to 630,695.25 and 978,438.38

Step by Step Solution

1. Step 1: Write the proportion equation
   630,695.25 : 978,438.38 = 978,438.38 : x
2. Step 2: Convert to fraction form
   630,695.25/978,438.38 = 978,438.38/x
3. Step 3: Cross multiply
   630,695.25x = 978,438.38 × 978,438.38
4. Step 4: Simplify right side
   630,695.25x = 957,341,653,672.64
5. Step 5: Solve for x
   x = 957,341,653,672.64/630,695.25
6. Step 6: Final answer
   x = 1,517,914.80