Finding the Third Proportional to 227,355 and 355,612.50

Step by Step Solution

1. Step 1: Write the proportion equation
   227,355 : 355,612.50 = 355,612.50 : x
2. Step 2: Convert to fraction form
   227,355/355,612.50 = 355,612.50/x
3. Step 3: Cross multiply
   227,355x = 355,612.50 × 355,612.50
4. Step 4: Simplify right side
   227,355x = 126,460,250,156.25
5. Step 5: Solve for x
   x = 126,460,250,156.25/227,355
6. Step 6: Final answer
   x = 556,223.75