Finding the Third Proportional to 151,218 and 223,378.50

Step by Step Solution

1. Step 1: Write the proportion equation
   151,218 : 223,378.50 = 223,378.50 : x
2. Step 2: Convert to fraction form
   151,218/223,378.50 = 223,378.50/x
3. Step 3: Cross multiply
   151,218x = 223,378.50 × 223,378.50
4. Step 4: Simplify right side
   151,218x = 49,897,954,262.25
5. Step 5: Solve for x
   x = 49,897,954,262.25/151,218
6. Step 6: Final answer
   x = 329,973.64