Finding the Third Proportional to 1,209,881 and 1,857,117

Step by Step Solution

1. Step 1: Write the proportion equation
   1,209,881 : 1,857,117 = 1,857,117 : x
2. Step 2: Convert to fraction form
   1,209,881/1,857,117 = 1,857,117/x
3. Step 3: Cross multiply
   1,209,881x = 1,857,117 × 1,857,117
4. Step 4: Simplify right side
   1,209,881x = 3,448,883,551,689
5. Step 5: Solve for x
   x = 3,448,883,551,689/1,209,881
6. Step 6: Final answer
   x = 2,850,597.33