Finding the Third Proportional to 2,690,139 and 5,805,250.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,690,139 : 5,805,250.50 = 5,805,250.50 : x
2. Step 2: Convert to fraction form
   2,690,139/5,805,250.50 = 5,805,250.50/x
3. Step 3: Cross multiply
   2,690,139x = 5,805,250.50 × 5,805,250.50
4. Step 4: Simplify right side
   2,690,139x = 33,700,933,367,750.25
5. Step 5: Solve for x
   x = 33,700,933,367,750.25/2,690,139
6. Step 6: Final answer
   x = 12,527,580.68