Finding the Third Proportional to 1,305,986.63 and 1,978,731.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,305,986.63 : 1,978,731.56 = 1,978,731.56 : x
2. Step 2: Convert to fraction form
   1,305,986.63/1,978,731.56 = 1,978,731.56/x
3. Step 3: Cross multiply
   1,305,986.63x = 1,978,731.56 × 1,978,731.56
4. Step 4: Simplify right side
   1,305,986.63x = 3,915,378,596,433.69
5. Step 5: Solve for x
   x = 3,915,378,596,433.69/1,305,986.63
6. Step 6: Final answer
   x = 2,998,023.50