Finding the Third Proportional to 1,231,603 and 1,961,246

Step by Step Solution

1. Step 1: Write the proportion equation
   1,231,603 : 1,961,246 = 1,961,246 : x
2. Step 2: Convert to fraction form
   1,231,603/1,961,246 = 1,961,246/x
3. Step 3: Cross multiply
   1,231,603x = 1,961,246 × 1,961,246
4. Step 4: Simplify right side
   1,231,603x = 3,846,485,872,516
5. Step 5: Solve for x
   x = 3,846,485,872,516/1,231,603
6. Step 6: Final answer
   x = 3,123,154.03