Finding the Third Proportional to 196,803 and 407,608.88

Step by Step Solution

1. Step 1: Write the proportion equation
   196,803 : 407,608.88 = 407,608.88 : x
2. Step 2: Convert to fraction form
   196,803/407,608.88 = 407,608.88/x
3. Step 3: Cross multiply
   196,803x = 407,608.88 × 407,608.88
4. Step 4: Simplify right side
   196,803x = 166,144,994,978.77
5. Step 5: Solve for x
   x = 166,144,994,978.77/196,803
6. Step 6: Final answer
   x = 844,219.83