Finding the Third Proportional to 639,776 and 1,481,099

Step by Step Solution

1. Step 1: Write the proportion equation
   639,776 : 1,481,099 = 1,481,099 : x
2. Step 2: Convert to fraction form
   639,776/1,481,099 = 1,481,099/x
3. Step 3: Cross multiply
   639,776x = 1,481,099 × 1,481,099
4. Step 4: Simplify right side
   639,776x = 2,193,654,247,801
5. Step 5: Solve for x
   x = 2,193,654,247,801/639,776
6. Step 6: Final answer
   x = 3,428,784.84