Finding the Third Proportional to 1,231,585 and 1,961,210

Step by Step Solution

1. Step 1: Write the proportion equation
   1,231,585 : 1,961,210 = 1,961,210 : x
2. Step 2: Convert to fraction form
   1,231,585/1,961,210 = 1,961,210/x
3. Step 3: Cross multiply
   1,231,585x = 1,961,210 × 1,961,210
4. Step 4: Simplify right side
   1,231,585x = 3,846,344,664,100
5. Step 5: Solve for x
   x = 3,846,344,664,100/1,231,585
6. Step 6: Final answer
   x = 3,123,085.02