Finding the Third Proportional to 478,998 and 666,008

Step by Step Solution

1. Step 1: Write the proportion equation
   478,998 : 666,008 = 666,008 : x
2. Step 2: Convert to fraction form
   478,998/666,008 = 666,008/x
3. Step 3: Cross multiply
   478,998x = 666,008 × 666,008
4. Step 4: Simplify right side
   478,998x = 443,566,656,064
5. Step 5: Solve for x
   x = 443,566,656,064/478,998
6. Step 6: Final answer
   x = 926,030.29