Finding the Third Proportional to 979,878.50 and 2,109,925.50

Step by Step Solution

1. Step 1: Write the proportion equation
   979,878.50 : 2,109,925.50 = 2,109,925.50 : x
2. Step 2: Convert to fraction form
   979,878.50/2,109,925.50 = 2,109,925.50/x
3. Step 3: Cross multiply
   979,878.50x = 2,109,925.50 × 2,109,925.50
4. Step 4: Simplify right side
   979,878.50x = 4,451,785,615,550.25
5. Step 5: Solve for x
   x = 4,451,785,615,550.25/979,878.50
6. Step 6: Final answer
   x = 4,543,201.65