Finding the Third Proportional to 455,886 and 992,043.75

Step by Step Solution

1. Step 1: Write the proportion equation
   455,886 : 992,043.75 = 992,043.75 : x
2. Step 2: Convert to fraction form
   455,886/992,043.75 = 992,043.75/x
3. Step 3: Cross multiply
   455,886x = 992,043.75 × 992,043.75
4. Step 4: Simplify right side
   455,886x = 984,150,801,914.06
5. Step 5: Solve for x
   x = 984,150,801,914.06/455,886
6. Step 6: Final answer
   x = 2,158,765.13