Finding the Third Proportional to 520,624.50 and 786,483

Step by Step Solution

1. Step 1: Write the proportion equation
   520,624.50 : 786,483 = 786,483 : x
2. Step 2: Convert to fraction form
   520,624.50/786,483 = 786,483/x
3. Step 3: Cross multiply
   520,624.50x = 786,483 × 786,483
4. Step 4: Simplify right side
   520,624.50x = 618,555,509,289
5. Step 5: Solve for x
   x = 618,555,509,289/520,624.50
6. Step 6: Final answer
   x = 1,188,102.96