Finding the Third Proportional to 111,768,439,068 and 243,765,789,344

Step by Step Solution

1. Step 1: Write the proportion equation
   111,768,439,068 : 243,765,789,344 = 243,765,789,344 : x
2. Step 2: Convert to fraction form
   111,768,439,068/243,765,789,344 = 243,765,789,344/x
3. Step 3: Cross multiply
   111,768,439,068x = 243,765,789,344 × 243,765,789,344
4. Step 4: Simplify right side
   111,768,439,068x = 59,421,760,054,503,384,547,328
5. Step 5: Solve for x
   x = 59,421,760,054,503,384,547,328/111,768,439,068
6. Step 6: Final answer
   x = 531,650,621,141.37