Finding the Third Proportional to 217,028 and 473,260

Step by Step Solution

1. Step 1: Write the proportion equation
   217,028 : 473,260 = 473,260 : x
2. Step 2: Convert to fraction form
   217,028/473,260 = 473,260/x
3. Step 3: Cross multiply
   217,028x = 473,260 × 473,260
4. Step 4: Simplify right side
   217,028x = 223,975,027,600
5. Step 5: Solve for x
   x = 223,975,027,600/217,028
6. Step 6: Final answer
   x = 1,032,009.82