Finding the Third Proportional to 195,306 and 428,002.50

Step by Step Solution

1. Step 1: Write the proportion equation
   195,306 : 428,002.50 = 428,002.50 : x
2. Step 2: Convert to fraction form
   195,306/428,002.50 = 428,002.50/x
3. Step 3: Cross multiply
   195,306x = 428,002.50 × 428,002.50
4. Step 4: Simplify right side
   195,306x = 183,186,140,006.25
5. Step 5: Solve for x
   x = 183,186,140,006.25/195,306
6. Step 6: Final answer
   x = 937,944.25