Finding the Third Proportional to 188,131.50 and 291,424.50

Step by Step Solution

1. Step 1: Write the proportion equation
   188,131.50 : 291,424.50 = 291,424.50 : x
2. Step 2: Convert to fraction form
   188,131.50/291,424.50 = 291,424.50/x
3. Step 3: Cross multiply
   188,131.50x = 291,424.50 × 291,424.50
4. Step 4: Simplify right side
   188,131.50x = 84,928,239,200.25
5. Step 5: Solve for x
   x = 84,928,239,200.25/188,131.50
6. Step 6: Final answer
   x = 451,430.19