Finding the Third Proportional to 117,399,624 and 243,093,648

Step by Step Solution

1. Step 1: Write the proportion equation
   117,399,624 : 243,093,648 = 243,093,648 : x
2. Step 2: Convert to fraction form
   117,399,624/243,093,648 = 243,093,648/x
3. Step 3: Cross multiply
   117,399,624x = 243,093,648 × 243,093,648
4. Step 4: Simplify right side
   117,399,624x = 59,094,521,697,947,904
5. Step 5: Solve for x
   x = 59,094,521,697,947,904/117,399,624
6. Step 6: Final answer
   x = 503,362,103.60