Finding the Third Proportional to 520,626 and 786,485.25

Step by Step Solution

1. Step 1: Write the proportion equation
   520,626 : 786,485.25 = 786,485.25 : x
2. Step 2: Convert to fraction form
   520,626/786,485.25 = 786,485.25/x
3. Step 3: Cross multiply
   520,626x = 786,485.25 × 786,485.25
4. Step 4: Simplify right side
   520,626x = 618,559,048,467.56
5. Step 5: Solve for x
   x = 618,559,048,467.56/520,626
6. Step 6: Final answer
   x = 1,188,106.33