Finding the Third Proportional to 458,006.50 and 978,908.50

Step by Step Solution

1. Step 1: Write the proportion equation
   458,006.50 : 978,908.50 = 978,908.50 : x
2. Step 2: Convert to fraction form
   458,006.50/978,908.50 = 978,908.50/x
3. Step 3: Cross multiply
   458,006.50x = 978,908.50 × 978,908.50
4. Step 4: Simplify right side
   458,006.50x = 958,261,851,372.25
5. Step 5: Solve for x
   x = 958,261,851,372.25/458,006.50
6. Step 6: Final answer
   x = 2,092,245.09