Finding the Third Proportional to 622,925 and 978,657

Step by Step Solution

1. Step 1: Write the proportion equation
   622,925 : 978,657 = 978,657 : x
2. Step 2: Convert to fraction form
   622,925/978,657 = 978,657/x
3. Step 3: Cross multiply
   622,925x = 978,657 × 978,657
4. Step 4: Simplify right side
   622,925x = 957,769,523,649
5. Step 5: Solve for x
   x = 957,769,523,649/622,925
6. Step 6: Final answer
   x = 1,537,535.86