Finding the Third Proportional to 276,808.50 and 601,640

Step by Step Solution

1. Step 1: Write the proportion equation
   276,808.50 : 601,640 = 601,640 : x
2. Step 2: Convert to fraction form
   276,808.50/601,640 = 601,640/x
3. Step 3: Cross multiply
   276,808.50x = 601,640 × 601,640
4. Step 4: Simplify right side
   276,808.50x = 361,970,689,600
5. Step 5: Solve for x
   x = 361,970,689,600/276,808.50
6. Step 6: Final answer
   x = 1,307,657.42