Finding the Third Proportional to 453,659 and 978,188

Step by Step Solution

1. Step 1: Write the proportion equation
   453,659 : 978,188 = 978,188 : x
2. Step 2: Convert to fraction form
   453,659/978,188 = 978,188/x
3. Step 3: Cross multiply
   453,659x = 978,188 × 978,188
4. Step 4: Simplify right side
   453,659x = 956,851,763,344
5. Step 5: Solve for x
   x = 956,851,763,344/453,659
6. Step 6: Final answer
   x = 2,109,187.22