Finding the Third Proportional to 1,218,340 and 1,785,942

Step by Step Solution

1. Step 1: Write the proportion equation
   1,218,340 : 1,785,942 = 1,785,942 : x
2. Step 2: Convert to fraction form
   1,218,340/1,785,942 = 1,785,942/x
3. Step 3: Cross multiply
   1,218,340x = 1,785,942 × 1,785,942
4. Step 4: Simplify right side
   1,218,340x = 3,189,588,827,364
5. Step 5: Solve for x
   x = 3,189,588,827,364/1,218,340
6. Step 6: Final answer
   x = 2,617,979.24