Finding the Third Proportional to 53,196 and 69,021

Step by Step Solution

1. Step 1: Write the proportion equation
   53,196 : 69,021 = 69,021 : x
2. Step 2: Convert to fraction form
   53,196/69,021 = 69,021/x
3. Step 3: Cross multiply
   53,196x = 69,021 × 69,021
4. Step 4: Simplify right side
   53,196x = 4,763,898,441
5. Step 5: Solve for x
   x = 4,763,898,441/53,196
6. Step 6: Final answer
   x = 89,553.70