Finding the Third Proportional to 122,788,144 and 264,157,040

Step by Step Solution

1. Step 1: Write the proportion equation
   122,788,144 : 264,157,040 = 264,157,040 : x
2. Step 2: Convert to fraction form
   122,788,144/264,157,040 = 264,157,040/x
3. Step 3: Cross multiply
   122,788,144x = 264,157,040 × 264,157,040
4. Step 4: Simplify right side
   122,788,144x = 69,778,941,781,561,600
5. Step 5: Solve for x
   x = 69,778,941,781,561,600/122,788,144
6. Step 6: Final answer
   x = 568,287,291.50