Finding the Third Proportional to 196,557.50 and 418,853

Step by Step Solution

1. Step 1: Write the proportion equation
   196,557.50 : 418,853 = 418,853 : x
2. Step 2: Convert to fraction form
   196,557.50/418,853 = 418,853/x
3. Step 3: Cross multiply
   196,557.50x = 418,853 × 418,853
4. Step 4: Simplify right side
   196,557.50x = 175,437,835,609
5. Step 5: Solve for x
   x = 175,437,835,609/196,557.50
6. Step 6: Final answer
   x = 892,552.23