Finding the Third Proportional to 111,886,608 and 263,748,504

Step by Step Solution

1. Step 1: Write the proportion equation
   111,886,608 : 263,748,504 = 263,748,504 : x
2. Step 2: Convert to fraction form
   111,886,608/263,748,504 = 263,748,504/x
3. Step 3: Cross multiply
   111,886,608x = 263,748,504 × 263,748,504
4. Step 4: Simplify right side
   111,886,608x = 69,563,273,362,238,016
5. Step 5: Solve for x
   x = 69,563,273,362,238,016/111,886,608
6. Step 6: Final answer
   x = 621,730,112.35