Finding the Third Proportional to 111,072,150 and 239,213,010

Step by Step Solution

1. Step 1: Write the proportion equation
   111,072,150 : 239,213,010 = 239,213,010 : x
2. Step 2: Convert to fraction form
   111,072,150/239,213,010 = 239,213,010/x
3. Step 3: Cross multiply
   111,072,150x = 239,213,010 × 239,213,010
4. Step 4: Simplify right side
   111,072,150x = 57,222,864,153,260,096
5. Step 5: Solve for x
   x = 57,222,864,153,260,096/111,072,150
6. Step 6: Final answer
   x = 515,186,427.50