Finding the Third Proportional to 664,155 and 1,037,704.50

Step by Step Solution

1. Step 1: Write the proportion equation
   664,155 : 1,037,704.50 = 1,037,704.50 : x
2. Step 2: Convert to fraction form
   664,155/1,037,704.50 = 1,037,704.50/x
3. Step 3: Cross multiply
   664,155x = 1,037,704.50 × 1,037,704.50
4. Step 4: Simplify right side
   664,155x = 1,076,830,629,320.25
5. Step 5: Solve for x
   x = 1,076,830,629,320.25/664,155
6. Step 6: Final answer
   x = 1,621,354.40