Finding the Third Proportional to 118,256,120 and 252,855,123

Step by Step Solution

1. Step 1: Write the proportion equation
   118,256,120 : 252,855,123 = 252,855,123 : x
2. Step 2: Convert to fraction form
   118,256,120/252,855,123 = 252,855,123/x
3. Step 3: Cross multiply
   118,256,120x = 252,855,123 × 252,855,123
4. Step 4: Simplify right side
   118,256,120x = 63,935,713,227,345,128
5. Step 5: Solve for x
   x = 63,935,713,227,345,128/118,256,120
6. Step 6: Final answer
   x = 540,654,582.84