Finding the Third Proportional to 60,345 and 91,521

Step by Step Solution

1. Step 1: Write the proportion equation
   60,345 : 91,521 = 91,521 : x
2. Step 2: Convert to fraction form
   60,345/91,521 = 91,521/x
3. Step 3: Cross multiply
   60,345x = 91,521 × 91,521
4. Step 4: Simplify right side
   60,345x = 8,376,093,441
5. Step 5: Solve for x
   x = 8,376,093,441/60,345
6. Step 6: Final answer
   x = 138,803.44