Finding the Third Proportional to 21,210 and 45,698.25

Step by Step Solution

1. Step 1: Write the proportion equation
   21,210 : 45,698.25 = 45,698.25 : x
2. Step 2: Convert to fraction form
   21,210/45,698.25 = 45,698.25/x
3. Step 3: Cross multiply
   21,210x = 45,698.25 × 45,698.25
4. Step 4: Simplify right side
   21,210x = 2,088,330,053.06
5. Step 5: Solve for x
   x = 2,088,330,053.06/21,210
6. Step 6: Final answer
   x = 98,459.69