Finding the Third Proportional to 251,173 and 377,321.50

Step by Step Solution

1. Step 1: Write the proportion equation
   251,173 : 377,321.50 = 377,321.50 : x
2. Step 2: Convert to fraction form
   251,173/377,321.50 = 377,321.50/x
3. Step 3: Cross multiply
   251,173x = 377,321.50 × 377,321.50
4. Step 4: Simplify right side
   251,173x = 142,371,514,362.25
5. Step 5: Solve for x
   x = 142,371,514,362.25/251,173
6. Step 6: Final answer
   x = 566,826.51