Finding the Third Proportional to 664,875 and 904,000.50

Step by Step Solution

1. Step 1: Write the proportion equation
   664,875 : 904,000.50 = 904,000.50 : x
2. Step 2: Convert to fraction form
   664,875/904,000.50 = 904,000.50/x
3. Step 3: Cross multiply
   664,875x = 904,000.50 × 904,000.50
4. Step 4: Simplify right side
   664,875x = 817,216,904,000.25
5. Step 5: Solve for x
   x = 817,216,904,000.25/664,875
6. Step 6: Final answer
   x = 1,229,128.64