Finding the Third Proportional to 820,479.38 and 1,242,054

Step by Step Solution

1. Step 1: Write the proportion equation
   820,479.38 : 1,242,054 = 1,242,054 : x
2. Step 2: Convert to fraction form
   820,479.38/1,242,054 = 1,242,054/x
3. Step 3: Cross multiply
   820,479.38x = 1,242,054 × 1,242,054
4. Step 4: Simplify right side
   820,479.38x = 1,542,698,138,916
5. Step 5: Solve for x
   x = 1,542,698,138,916/820,479.38
6. Step 6: Final answer
   x = 1,880,240.00