Finding the Third Proportional to 1,305,992.50 and 1,978,740.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,305,992.50 : 1,978,740.25 = 1,978,740.25 : x
2. Step 2: Convert to fraction form
   1,305,992.50/1,978,740.25 = 1,978,740.25/x
3. Step 3: Cross multiply
   1,305,992.50x = 1,978,740.25 × 1,978,740.25
4. Step 4: Simplify right side
   1,305,992.50x = 3,915,412,976,970.06
5. Step 5: Solve for x
   x = 3,915,412,976,970.06/1,305,992.50
6. Step 6: Final answer
   x = 2,998,036.34