Finding the Third Proportional to 2,430,678.38 and 5,309,833.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,430,678.38 : 5,309,833.50 = 5,309,833.50 : x
2. Step 2: Convert to fraction form
   2,430,678.38/5,309,833.50 = 5,309,833.50/x
3. Step 3: Cross multiply
   2,430,678.38x = 5,309,833.50 × 5,309,833.50
4. Step 4: Simplify right side
   2,430,678.38x = 28,194,331,797,722.25
5. Step 5: Solve for x
   x = 28,194,331,797,722.25/2,430,678.38
6. Step 6: Final answer
   x = 11,599,367.52