Finding the Third Proportional to 42,603 and 92,258.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,603 : 92,258.50 = 92,258.50 : x
2. Step 2: Convert to fraction form
   42,603/92,258.50 = 92,258.50/x
3. Step 3: Cross multiply
   42,603x = 92,258.50 × 92,258.50
4. Step 4: Simplify right side
   42,603x = 8,511,630,822.25
5. Step 5: Solve for x
   x = 8,511,630,822.25/42,603
6. Step 6: Final answer
   x = 199,789.47