Finding the Third Proportional to 1,663,884 and 3,406,620

Step by Step Solution

1. Step 1: Write the proportion equation
   1,663,884 : 3,406,620 = 3,406,620 : x
2. Step 2: Convert to fraction form
   1,663,884/3,406,620 = 3,406,620/x
3. Step 3: Cross multiply
   1,663,884x = 3,406,620 × 3,406,620
4. Step 4: Simplify right side
   1,663,884x = 11,605,059,824,400
5. Step 5: Solve for x
   x = 11,605,059,824,400/1,663,884
6. Step 6: Final answer
   x = 6,974,680.82