Finding the Third Proportional to 1,689,768 and 3,519,342

Step by Step Solution

1. Step 1: Write the proportion equation
   1,689,768 : 3,519,342 = 3,519,342 : x
2. Step 2: Convert to fraction form
   1,689,768/3,519,342 = 3,519,342/x
3. Step 3: Cross multiply
   1,689,768x = 3,519,342 × 3,519,342
4. Step 4: Simplify right side
   1,689,768x = 12,385,768,112,964
5. Step 5: Solve for x
   x = 12,385,768,112,964/1,689,768
6. Step 6: Final answer
   x = 7,329,863.10