Finding the Third Proportional to 21,064 and 30,820

Step by Step Solution

1. Step 1: Write the proportion equation
   21,064 : 30,820 = 30,820 : x
2. Step 2: Convert to fraction form
   21,064/30,820 = 30,820/x
3. Step 3: Cross multiply
   21,064x = 30,820 × 30,820
4. Step 4: Simplify right side
   21,064x = 949,872,400
5. Step 5: Solve for x
   x = 949,872,400/21,064
6. Step 6: Final answer
   x = 45,094.59