Finding the Third Proportional to 368,892 and 555,934.50

Step by Step Solution

1. Step 1: Write the proportion equation
   368,892 : 555,934.50 = 555,934.50 : x
2. Step 2: Convert to fraction form
   368,892/555,934.50 = 555,934.50/x
3. Step 3: Cross multiply
   368,892x = 555,934.50 × 555,934.50
4. Step 4: Simplify right side
   368,892x = 309,063,168,290.25
5. Step 5: Solve for x
   x = 309,063,168,290.25/368,892
6. Step 6: Final answer
   x = 837,814.78