Finding the Third Proportional to 214,886 and 472,660

Step by Step Solution

1. Step 1: Write the proportion equation
   214,886 : 472,660 = 472,660 : x
2. Step 2: Convert to fraction form
   214,886/472,660 = 472,660/x
3. Step 3: Cross multiply
   214,886x = 472,660 × 472,660
4. Step 4: Simplify right side
   214,886x = 223,407,475,600
5. Step 5: Solve for x
   x = 223,407,475,600/214,886
6. Step 6: Final answer
   x = 1,039,655.80