Finding the Third Proportional to 8,458,573.50 and 12,690,452.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,458,573.50 : 12,690,452.25 = 12,690,452.25 : x
2. Step 2: Convert to fraction form
   8,458,573.50/12,690,452.25 = 12,690,452.25/x
3. Step 3: Cross multiply
   8,458,573.50x = 12,690,452.25 × 12,690,452.25
4. Step 4: Simplify right side
   8,458,573.50x = 161,047,578,309,530.06
5. Step 5: Solve for x
   x = 161,047,578,309,530.06/8,458,573.50
6. Step 6: Final answer
   x = 19,039,567.17