Finding the Third Proportional to 221,130 and 333,525.09

Step by Step Solution

1. Step 1: Write the proportion equation
   221,130 : 333,525.09 = 333,525.09 : x
2. Step 2: Convert to fraction form
   221,130/333,525.09 = 333,525.09/x
3. Step 3: Cross multiply
   221,130x = 333,525.09 × 333,525.09
4. Step 4: Simplify right side
   221,130x = 111,238,988,160.95
5. Step 5: Solve for x
   x = 111,238,988,160.95/221,130
6. Step 6: Final answer
   x = 503,047.93