Finding the Third Proportional to 218,730 and 467,790

Step by Step Solution

1. Step 1: Write the proportion equation
   218,730 : 467,790 = 467,790 : x
2. Step 2: Convert to fraction form
   218,730/467,790 = 467,790/x
3. Step 3: Cross multiply
   218,730x = 467,790 × 467,790
4. Step 4: Simplify right side
   218,730x = 218,827,484,100
5. Step 5: Solve for x
   x = 218,827,484,100/218,730
6. Step 6: Final answer
   x = 1,000,445.68