Finding the Third Proportional to 1,689,473 and 3,676,378

Step by Step Solution

1. Step 1: Write the proportion equation
   1,689,473 : 3,676,378 = 3,676,378 : x
2. Step 2: Convert to fraction form
   1,689,473/3,676,378 = 3,676,378/x
3. Step 3: Cross multiply
   1,689,473x = 3,676,378 × 3,676,378
4. Step 4: Simplify right side
   1,689,473x = 13,515,755,198,884
5. Step 5: Solve for x
   x = 13,515,755,198,884/1,689,473
6. Step 6: Final answer
   x = 7,999,982.95