Finding the Third Proportional to 285,429 and 444,485.50

Step by Step Solution

1. Step 1: Write the proportion equation
   285,429 : 444,485.50 = 444,485.50 : x
2. Step 2: Convert to fraction form
   285,429/444,485.50 = 444,485.50/x
3. Step 3: Cross multiply
   285,429x = 444,485.50 × 444,485.50
4. Step 4: Simplify right side
   285,429x = 197,567,359,710.25
5. Step 5: Solve for x
   x = 197,567,359,710.25/285,429
6. Step 6: Final answer
   x = 692,176.90