Finding the Third Proportional to 1,218,984 and 1,859,416

Step by Step Solution

1. Step 1: Write the proportion equation
   1,218,984 : 1,859,416 = 1,859,416 : x
2. Step 2: Convert to fraction form
   1,218,984/1,859,416 = 1,859,416/x
3. Step 3: Cross multiply
   1,218,984x = 1,859,416 × 1,859,416
4. Step 4: Simplify right side
   1,218,984x = 3,457,427,861,056
5. Step 5: Solve for x
   x = 3,457,427,861,056/1,218,984
6. Step 6: Final answer
   x = 2,836,319.31