Finding the Third Proportional to 766,280 and 1,665,198

Step by Step Solution

1. Step 1: Write the proportion equation
   766,280 : 1,665,198 = 1,665,198 : x
2. Step 2: Convert to fraction form
   766,280/1,665,198 = 1,665,198/x
3. Step 3: Cross multiply
   766,280x = 1,665,198 × 1,665,198
4. Step 4: Simplify right side
   766,280x = 2,772,884,379,204
5. Step 5: Solve for x
   x = 2,772,884,379,204/766,280
6. Step 6: Final answer
   x = 3,618,630.76