Finding the Third Proportional to 111,768,439,065.50 and 243,765,789,339.75

Step by Step Solution

1. Step 1: Write the proportion equation
   111,768,439,065.50 : 243,765,789,339.75 = 243,765,789,339.75 : x
2. Step 2: Convert to fraction form
   111,768,439,065.50/243,765,789,339.75 = 243,765,789,339.75/x
3. Step 3: Cross multiply
   111,768,439,065.50x = 243,765,789,339.75 × 243,765,789,339.75
4. Step 4: Simplify right side
   111,768,439,065.50x = 59,421,760,052,431,373,205,504
5. Step 5: Solve for x
   x = 59,421,760,052,431,373,205,504/111,768,439,065.50
6. Step 6: Final answer
   x = 531,650,621,134.72