Finding the Third Proportional to 164,221.50 and 353,772

Step by Step Solution

1. Step 1: Write the proportion equation
   164,221.50 : 353,772 = 353,772 : x
2. Step 2: Convert to fraction form
   164,221.50/353,772 = 353,772/x
3. Step 3: Cross multiply
   164,221.50x = 353,772 × 353,772
4. Step 4: Simplify right side
   164,221.50x = 125,154,627,984
5. Step 5: Solve for x
   x = 125,154,627,984/164,221.50
6. Step 6: Final answer
   x = 762,108.66