Finding the Third Proportional to 27,618.47 and 42,475.64

Step by Step Solution

1. Step 1: Write the proportion equation
   27,618.47 : 42,475.64 = 42,475.64 : x
2. Step 2: Convert to fraction form
   27,618.47/42,475.64 = 42,475.64/x
3. Step 3: Cross multiply
   27,618.47x = 42,475.64 × 42,475.64
4. Step 4: Simplify right side
   27,618.47x = 1,804,180,046.50
5. Step 5: Solve for x
   x = 1,804,180,046.50/27,618.47
6. Step 6: Final answer
   x = 65,325.13