Finding the Third Proportional to 435,740 and 666,151

Step by Step Solution

1. Step 1: Write the proportion equation
   435,740 : 666,151 = 666,151 : x
2. Step 2: Convert to fraction form
   435,740/666,151 = 666,151/x
3. Step 3: Cross multiply
   435,740x = 666,151 × 666,151
4. Step 4: Simplify right side
   435,740x = 443,757,154,801
5. Step 5: Solve for x
   x = 443,757,154,801/435,740
6. Step 6: Final answer
   x = 1,018,398.94