Finding the Third Proportional to 28,390 and 59,721

Step by Step Solution

1. Step 1: Write the proportion equation
   28,390 : 59,721 = 59,721 : x
2. Step 2: Convert to fraction form
   28,390/59,721 = 59,721/x
3. Step 3: Cross multiply
   28,390x = 59,721 × 59,721
4. Step 4: Simplify right side
   28,390x = 3,566,597,841
5. Step 5: Solve for x
   x = 3,566,597,841/28,390
6. Step 6: Final answer
   x = 125,628.67