Finding the Third Proportional to 401,770.50 and 607,839

Step by Step Solution

1. Step 1: Write the proportion equation
   401,770.50 : 607,839 = 607,839 : x
2. Step 2: Convert to fraction form
   401,770.50/607,839 = 607,839/x
3. Step 3: Cross multiply
   401,770.50x = 607,839 × 607,839
4. Step 4: Simplify right side
   401,770.50x = 369,468,249,921
5. Step 5: Solve for x
   x = 369,468,249,921/401,770.50
6. Step 6: Final answer
   x = 919,600.24