Finding the Third Proportional to 287,454 and 604,700

Step by Step Solution

1. Step 1: Write the proportion equation
   287,454 : 604,700 = 604,700 : x
2. Step 2: Convert to fraction form
   287,454/604,700 = 604,700/x
3. Step 3: Cross multiply
   287,454x = 604,700 × 604,700
4. Step 4: Simplify right side
   287,454x = 365,662,090,000
5. Step 5: Solve for x
   x = 365,662,090,000/287,454
6. Step 6: Final answer
   x = 1,272,071.67