Finding the Third Proportional to 59,404 and 78,521

Step by Step Solution

1. Step 1: Write the proportion equation
   59,404 : 78,521 = 78,521 : x
2. Step 2: Convert to fraction form
   59,404/78,521 = 78,521/x
3. Step 3: Cross multiply
   59,404x = 78,521 × 78,521
4. Step 4: Simplify right side
   59,404x = 6,165,547,441
5. Step 5: Solve for x
   x = 6,165,547,441/59,404
6. Step 6: Final answer
   x = 103,790.11