Finding the Third Proportional to 2,556,786 and 5,681,107.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,556,786 : 5,681,107.50 = 5,681,107.50 : x
2. Step 2: Convert to fraction form
   2,556,786/5,681,107.50 = 5,681,107.50/x
3. Step 3: Cross multiply
   2,556,786x = 5,681,107.50 × 5,681,107.50
4. Step 4: Simplify right side
   2,556,786x = 32,274,982,426,556.25
5. Step 5: Solve for x
   x = 32,274,982,426,556.25/2,556,786
6. Step 6: Final answer
   x = 12,623,263.12