Finding the Third Proportional to 221,523.50 and 485,940

Step by Step Solution

1. Step 1: Write the proportion equation
   221,523.50 : 485,940 = 485,940 : x
2. Step 2: Convert to fraction form
   221,523.50/485,940 = 485,940/x
3. Step 3: Cross multiply
   221,523.50x = 485,940 × 485,940
4. Step 4: Simplify right side
   221,523.50x = 236,137,683,600
5. Step 5: Solve for x
   x = 236,137,683,600/221,523.50
6. Step 6: Final answer
   x = 1,065,971.26