Finding the Third Proportional to 429,230 and 664,322.50

Step by Step Solution

1. Step 1: Write the proportion equation
   429,230 : 664,322.50 = 664,322.50 : x
2. Step 2: Convert to fraction form
   429,230/664,322.50 = 664,322.50/x
3. Step 3: Cross multiply
   429,230x = 664,322.50 × 664,322.50
4. Step 4: Simplify right side
   429,230x = 441,324,384,006.25
5. Step 5: Solve for x
   x = 441,324,384,006.25/429,230
6. Step 6: Final answer
   x = 1,028,176.93