Finding the Third Proportional to 276,842 and 603,711.50

Step by Step Solution

1. Step 1: Write the proportion equation
   276,842 : 603,711.50 = 603,711.50 : x
2. Step 2: Convert to fraction form
   276,842/603,711.50 = 603,711.50/x
3. Step 3: Cross multiply
   276,842x = 603,711.50 × 603,711.50
4. Step 4: Simplify right side
   276,842x = 364,467,575,232.25
5. Step 5: Solve for x
   x = 364,467,575,232.25/276,842
6. Step 6: Final answer
   x = 1,316,518.36