Finding the Third Proportional to 747,673 and 1,640,099

Step by Step Solution

1. Step 1: Write the proportion equation
   747,673 : 1,640,099 = 1,640,099 : x
2. Step 2: Convert to fraction form
   747,673/1,640,099 = 1,640,099/x
3. Step 3: Cross multiply
   747,673x = 1,640,099 × 1,640,099
4. Step 4: Simplify right side
   747,673x = 2,689,924,729,801
5. Step 5: Solve for x
   x = 2,689,924,729,801/747,673
6. Step 6: Final answer
   x = 3,597,728.86