Finding the Third Proportional to 1,628,604.50 and 3,578,428

Step by Step Solution

1. Step 1: Write the proportion equation
   1,628,604.50 : 3,578,428 = 3,578,428 : x
2. Step 2: Convert to fraction form
   1,628,604.50/3,578,428 = 3,578,428/x
3. Step 3: Cross multiply
   1,628,604.50x = 3,578,428 × 3,578,428
4. Step 4: Simplify right side
   1,628,604.50x = 12,805,146,951,184
5. Step 5: Solve for x
   x = 12,805,146,951,184/1,628,604.50
6. Step 6: Final answer
   x = 7,862,649.86