Finding the Third Proportional to 21,368 and 45,640

Step by Step Solution

1. Step 1: Write the proportion equation
   21,368 : 45,640 = 45,640 : x
2. Step 2: Convert to fraction form
   21,368/45,640 = 45,640/x
3. Step 3: Cross multiply
   21,368x = 45,640 × 45,640
4. Step 4: Simplify right side
   21,368x = 2,083,009,600
5. Step 5: Solve for x
   x = 2,083,009,600/21,368
6. Step 6: Final answer
   x = 97,482.67