Finding the Third Proportional to 214,695.56 and 315,631.69

Step by Step Solution

1. Step 1: Write the proportion equation
   214,695.56 : 315,631.69 = 315,631.69 : x
2. Step 2: Convert to fraction form
   214,695.56/315,631.69 = 315,631.69/x
3. Step 3: Cross multiply
   214,695.56x = 315,631.69 × 315,631.69
4. Step 4: Simplify right side
   214,695.56x = 99,623,362,154.10
5. Step 5: Solve for x
   x = 99,623,362,154.10/214,695.56
6. Step 6: Final answer
   x = 464,021.52