Finding the Third Proportional to 21,772 and 45,428

Step by Step Solution

1. Step 1: Write the proportion equation
   21,772 : 45,428 = 45,428 : x
2. Step 2: Convert to fraction form
   21,772/45,428 = 45,428/x
3. Step 3: Cross multiply
   21,772x = 45,428 × 45,428
4. Step 4: Simplify right side
   21,772x = 2,063,703,184
5. Step 5: Solve for x
   x = 2,063,703,184/21,772
6. Step 6: Final answer
   x = 94,787.03