Finding the Third Proportional to 19,478 and 42,484

Step by Step Solution

1. Step 1: Write the proportion equation
   19,478 : 42,484 = 42,484 : x
2. Step 2: Convert to fraction form
   19,478/42,484 = 42,484/x
3. Step 3: Cross multiply
   19,478x = 42,484 × 42,484
4. Step 4: Simplify right side
   19,478x = 1,804,890,256
5. Step 5: Solve for x
   x = 1,804,890,256/19,478
6. Step 6: Final answer
   x = 92,663.02