Finding the Third Proportional to 215,027 and 300,746

Step by Step Solution

1. Step 1: Write the proportion equation
   215,027 : 300,746 = 300,746 : x
2. Step 2: Convert to fraction form
   215,027/300,746 = 300,746/x
3. Step 3: Cross multiply
   215,027x = 300,746 × 300,746
4. Step 4: Simplify right side
   215,027x = 90,448,156,516
5. Step 5: Solve for x
   x = 90,448,156,516/215,027
6. Step 6: Final answer
   x = 420,636.28