Finding the Third Proportional to 117,150,819 and 243,998,139

Step by Step Solution

1. Step 1: Write the proportion equation
   117,150,819 : 243,998,139 = 243,998,139 : x
2. Step 2: Convert to fraction form
   117,150,819/243,998,139 = 243,998,139/x
3. Step 3: Cross multiply
   117,150,819x = 243,998,139 × 243,998,139
4. Step 4: Simplify right side
   117,150,819x = 59,535,091,835,463,320
5. Step 5: Solve for x
   x = 59,535,091,835,463,320/117,150,819
6. Step 6: Final answer
   x = 508,191,853.40