Finding the Third Proportional to 305,219 and 449,007.50

Step by Step Solution

1. Step 1: Write the proportion equation
   305,219 : 449,007.50 = 449,007.50 : x
2. Step 2: Convert to fraction form
   305,219/449,007.50 = 449,007.50/x
3. Step 3: Cross multiply
   305,219x = 449,007.50 × 449,007.50
4. Step 4: Simplify right side
   305,219x = 201,607,735,056.25
5. Step 5: Solve for x
   x = 201,607,735,056.25/305,219
6. Step 6: Final answer
   x = 660,534.68