Finding the Third Proportional to 2,690,143 and 5,805,258

Step by Step Solution

1. Step 1: Write the proportion equation
   2,690,143 : 5,805,258 = 5,805,258 : x
2. Step 2: Convert to fraction form
   2,690,143/5,805,258 = 5,805,258/x
3. Step 3: Cross multiply
   2,690,143x = 5,805,258 × 5,805,258
4. Step 4: Simplify right side
   2,690,143x = 33,701,020,446,564
5. Step 5: Solve for x
   x = 33,701,020,446,564/2,690,143
6. Step 6: Final answer
   x = 12,527,594.42