Finding the Third Proportional to 310,315 and 442,933.50

Step by Step Solution

1. Step 1: Write the proportion equation
   310,315 : 442,933.50 = 442,933.50 : x
2. Step 2: Convert to fraction form
   310,315/442,933.50 = 442,933.50/x
3. Step 3: Cross multiply
   310,315x = 442,933.50 × 442,933.50
4. Step 4: Simplify right side
   310,315x = 196,190,085,422.25
5. Step 5: Solve for x
   x = 196,190,085,422.25/310,315
6. Step 6: Final answer
   x = 632,228.82