Finding the Third Proportional to 215,030.25 and 455,697

Step by Step Solution

1. Step 1: Write the proportion equation
   215,030.25 : 455,697 = 455,697 : x
2. Step 2: Convert to fraction form
   215,030.25/455,697 = 455,697/x
3. Step 3: Cross multiply
   215,030.25x = 455,697 × 455,697
4. Step 4: Simplify right side
   215,030.25x = 207,659,755,809
5. Step 5: Solve for x
   x = 207,659,755,809/215,030.25
6. Step 6: Final answer
   x = 965,723.45