Finding the Third Proportional to 217,418 and 473,432

Step by Step Solution

1. Step 1: Write the proportion equation
   217,418 : 473,432 = 473,432 : x
2. Step 2: Convert to fraction form
   217,418/473,432 = 473,432/x
3. Step 3: Cross multiply
   217,418x = 473,432 × 473,432
4. Step 4: Simplify right side
   217,418x = 224,137,858,624
5. Step 5: Solve for x
   x = 224,137,858,624/217,418
6. Step 6: Final answer
   x = 1,030,907.55