Finding the Third Proportional to 215,132 and 472,724

Step by Step Solution

1. Step 1: Write the proportion equation
   215,132 : 472,724 = 472,724 : x
2. Step 2: Convert to fraction form
   215,132/472,724 = 472,724/x
3. Step 3: Cross multiply
   215,132x = 472,724 × 472,724
4. Step 4: Simplify right side
   215,132x = 223,467,980,176
5. Step 5: Solve for x
   x = 223,467,980,176/215,132
6. Step 6: Final answer
   x = 1,038,748.21