Finding the Third Proportional to 285,601.50 and 607,878

Step by Step Solution

1. Step 1: Write the proportion equation
   285,601.50 : 607,878 = 607,878 : x
2. Step 2: Convert to fraction form
   285,601.50/607,878 = 607,878/x
3. Step 3: Cross multiply
   285,601.50x = 607,878 × 607,878
4. Step 4: Simplify right side
   285,601.50x = 369,515,662,884
5. Step 5: Solve for x
   x = 369,515,662,884/285,601.50
6. Step 6: Final answer
   x = 1,293,815.55