Finding the Third Proportional to 1,311,193.50 and 1,978,838.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,311,193.50 : 1,978,838.25 = 1,978,838.25 : x
2. Step 2: Convert to fraction form
   1,311,193.50/1,978,838.25 = 1,978,838.25/x
3. Step 3: Cross multiply
   1,311,193.50x = 1,978,838.25 × 1,978,838.25
4. Step 4: Simplify right side
   1,311,193.50x = 3,915,800,819,663.06
5. Step 5: Solve for x
   x = 3,915,800,819,663.06/1,311,193.50
6. Step 6: Final answer
   x = 2,986,440.08