Finding the Third Proportional to 184,399.50 and 278,295

Step by Step Solution

1. Step 1: Write the proportion equation
   184,399.50 : 278,295 = 278,295 : x
2. Step 2: Convert to fraction form
   184,399.50/278,295 = 278,295/x
3. Step 3: Cross multiply
   184,399.50x = 278,295 × 278,295
4. Step 4: Simplify right side
   184,399.50x = 77,448,107,025
5. Step 5: Solve for x
   x = 77,448,107,025/184,399.50
6. Step 6: Final answer
   x = 420,001.72