Finding the Third Proportional to 664,176 and 996,385.50

Step by Step Solution

1. Step 1: Write the proportion equation
   664,176 : 996,385.50 = 996,385.50 : x
2. Step 2: Convert to fraction form
   664,176/996,385.50 = 996,385.50/x
3. Step 3: Cross multiply
   664,176x = 996,385.50 × 996,385.50
4. Step 4: Simplify right side
   664,176x = 992,784,064,610.25
5. Step 5: Solve for x
   x = 992,784,064,610.25/664,176
6. Step 6: Final answer
   x = 1,494,760.52