Finding the Third Proportional to 747,680 and 1,644,886

Step by Step Solution

1. Step 1: Write the proportion equation
   747,680 : 1,644,886 = 1,644,886 : x
2. Step 2: Convert to fraction form
   747,680/1,644,886 = 1,644,886/x
3. Step 3: Cross multiply
   747,680x = 1,644,886 × 1,644,886
4. Step 4: Simplify right side
   747,680x = 2,705,649,952,996
5. Step 5: Solve for x
   x = 2,705,649,952,996/747,680
6. Step 6: Final answer
   x = 3,618,727.20