Finding the Third Proportional to 747,948 and 1,645,428

Step by Step Solution

1. Step 1: Write the proportion equation
   747,948 : 1,645,428 = 1,645,428 : x
2. Step 2: Convert to fraction form
   747,948/1,645,428 = 1,645,428/x
3. Step 3: Cross multiply
   747,948x = 1,645,428 × 1,645,428
4. Step 4: Simplify right side
   747,948x = 2,707,433,303,184
5. Step 5: Solve for x
   x = 2,707,433,303,184/747,948
6. Step 6: Final answer
   x = 3,619,814.88