Finding the Third Proportional to 479,026 and 666,040

Step by Step Solution

1. Step 1: Write the proportion equation
   479,026 : 666,040 = 666,040 : x
2. Step 2: Convert to fraction form
   479,026/666,040 = 666,040/x
3. Step 3: Cross multiply
   479,026x = 666,040 × 666,040
4. Step 4: Simplify right side
   479,026x = 443,609,281,600
5. Step 5: Solve for x
   x = 443,609,281,600/479,026
6. Step 6: Final answer
   x = 926,065.14