Finding the Third Proportional to 196,932 and 421,888.50

Step by Step Solution

1. Step 1: Write the proportion equation
   196,932 : 421,888.50 = 421,888.50 : x
2. Step 2: Convert to fraction form
   196,932/421,888.50 = 421,888.50/x
3. Step 3: Cross multiply
   196,932x = 421,888.50 × 421,888.50
4. Step 4: Simplify right side
   196,932x = 177,989,906,432.25
5. Step 5: Solve for x
   x = 177,989,906,432.25/196,932
6. Step 6: Final answer
   x = 903,814.04