Finding the Third Proportional to 111,357,516 and 245,327,640

Step by Step Solution

1. Step 1: Write the proportion equation
   111,357,516 : 245,327,640 = 245,327,640 : x
2. Step 2: Convert to fraction form
   111,357,516/245,327,640 = 245,327,640/x
3. Step 3: Cross multiply
   111,357,516x = 245,327,640 × 245,327,640
4. Step 4: Simplify right side
   111,357,516x = 60,185,650,947,969,600
5. Step 5: Solve for x
   x = 60,185,650,947,969,600/111,357,516
6. Step 6: Final answer
   x = 540,472,283.42