Finding the Third Proportional to 368,550 and 555,422.06

Step by Step Solution

1. Step 1: Write the proportion equation
   368,550 : 555,422.06 = 555,422.06 : x
2. Step 2: Convert to fraction form
   368,550/555,422.06 = 555,422.06/x
3. Step 3: Cross multiply
   368,550x = 555,422.06 × 555,422.06
4. Step 4: Simplify right side
   368,550x = 308,493,667,511.75
5. Step 5: Solve for x
   x = 308,493,667,511.75/368,550
6. Step 6: Final answer
   x = 837,046.99