Finding the Third Proportional to 21,430 and 45,856

Step by Step Solution

1. Step 1: Write the proportion equation
   21,430 : 45,856 = 45,856 : x
2. Step 2: Convert to fraction form
   21,430/45,856 = 45,856/x
3. Step 3: Cross multiply
   21,430x = 45,856 × 45,856
4. Step 4: Simplify right side
   21,430x = 2,102,772,736
5. Step 5: Solve for x
   x = 2,102,772,736/21,430
6. Step 6: Final answer
   x = 98,122.85