Finding the Third Proportional to 220,694 and 472,492

Step by Step Solution

1. Step 1: Write the proportion equation
   220,694 : 472,492 = 472,492 : x
2. Step 2: Convert to fraction form
   220,694/472,492 = 472,492/x
3. Step 3: Cross multiply
   220,694x = 472,492 × 472,492
4. Step 4: Simplify right side
   220,694x = 223,248,690,064
5. Step 5: Solve for x
   x = 223,248,690,064/220,694
6. Step 6: Final answer
   x = 1,011,575.71