Finding the Third Proportional to 111,862,959 and 263,692,096

Step by Step Solution

1. Step 1: Write the proportion equation
   111,862,959 : 263,692,096 = 263,692,096 : x
2. Step 2: Convert to fraction form
   111,862,959/263,692,096 = 263,692,096/x
3. Step 3: Cross multiply
   111,862,959x = 263,692,096 × 263,692,096
4. Step 4: Simplify right side
   111,862,959x = 69,533,521,492,873,216
5. Step 5: Solve for x
   x = 69,533,521,492,873,216/111,862,959
6. Step 6: Final answer
   x = 621,595,585.48