Finding the Third Proportional to 21,680 and 45,076

Step by Step Solution

1. Step 1: Write the proportion equation
   21,680 : 45,076 = 45,076 : x
2. Step 2: Convert to fraction form
   21,680/45,076 = 45,076/x
3. Step 3: Cross multiply
   21,680x = 45,076 × 45,076
4. Step 4: Simplify right side
   21,680x = 2,031,845,776
5. Step 5: Solve for x
   x = 2,031,845,776/21,680
6. Step 6: Final answer
   x = 93,719.82