Finding the Third Proportional to 395,472 and 612,868.50

Step by Step Solution

1. Step 1: Write the proportion equation
   395,472 : 612,868.50 = 612,868.50 : x
2. Step 2: Convert to fraction form
   395,472/612,868.50 = 612,868.50/x
3. Step 3: Cross multiply
   395,472x = 612,868.50 × 612,868.50
4. Step 4: Simplify right side
   395,472x = 375,607,798,292.25
5. Step 5: Solve for x
   x = 375,607,798,292.25/395,472
6. Step 6: Final answer
   x = 949,770.90