Finding the Third Proportional to 212,078 and 454,514.75

Step by Step Solution

1. Step 1: Write the proportion equation
   212,078 : 454,514.75 = 454,514.75 : x
2. Step 2: Convert to fraction form
   212,078/454,514.75 = 454,514.75/x
3. Step 3: Cross multiply
   212,078x = 454,514.75 × 454,514.75
4. Step 4: Simplify right side
   212,078x = 206,583,657,967.56
5. Step 5: Solve for x
   x = 206,583,657,967.56/212,078
6. Step 6: Final answer
   x = 974,092.82