Finding the Third Proportional to 216,453 and 294,871.50

Step by Step Solution

1. Step 1: Write the proportion equation
   216,453 : 294,871.50 = 294,871.50 : x
2. Step 2: Convert to fraction form
   216,453/294,871.50 = 294,871.50/x
3. Step 3: Cross multiply
   216,453x = 294,871.50 × 294,871.50
4. Step 4: Simplify right side
   216,453x = 86,949,201,512.25
5. Step 5: Solve for x
   x = 86,949,201,512.25/216,453
6. Step 6: Final answer
   x = 401,700.15