Finding the Third Proportional to 30,221.25 and 42,483.38

Step by Step Solution

1. Step 1: Write the proportion equation
   30,221.25 : 42,483.38 = 42,483.38 : x
2. Step 2: Convert to fraction form
   30,221.25/42,483.38 = 42,483.38/x
3. Step 3: Cross multiply
   30,221.25x = 42,483.38 × 42,483.38
4. Step 4: Simplify right side
   30,221.25x = 1,804,837,151.39
5. Step 5: Solve for x
   x = 1,804,837,151.39/30,221.25
6. Step 6: Final answer
   x = 59,720.80