Finding the Third Proportional to 276,219 and 405,580.50

Step by Step Solution

1. Step 1: Write the proportion equation
   276,219 : 405,580.50 = 405,580.50 : x
2. Step 2: Convert to fraction form
   276,219/405,580.50 = 405,580.50/x
3. Step 3: Cross multiply
   276,219x = 405,580.50 × 405,580.50
4. Step 4: Simplify right side
   276,219x = 164,495,541,980.25
5. Step 5: Solve for x
   x = 164,495,541,980.25/276,219
6. Step 6: Final answer
   x = 595,525.80