Finding the Third Proportional to 310,230 and 474,367.50

Step by Step Solution

1. Step 1: Write the proportion equation
   310,230 : 474,367.50 = 474,367.50 : x
2. Step 2: Convert to fraction form
   310,230/474,367.50 = 474,367.50/x
3. Step 3: Cross multiply
   310,230x = 474,367.50 × 474,367.50
4. Step 4: Simplify right side
   310,230x = 225,024,525,056.25
5. Step 5: Solve for x
   x = 225,024,525,056.25/310,230
6. Step 6: Final answer
   x = 725,347.40