Finding the Third Proportional to 78,122,078 and 165,101,488

Step by Step Solution

1. Step 1: Write the proportion equation
   78,122,078 : 165,101,488 = 165,101,488 : x
2. Step 2: Convert to fraction form
   78,122,078/165,101,488 = 165,101,488/x
3. Step 3: Cross multiply
   78,122,078x = 165,101,488 × 165,101,488
4. Step 4: Simplify right side
   78,122,078x = 27,258,501,339,814,144
5. Step 5: Solve for x
   x = 27,258,501,339,814,144/78,122,078
6. Step 6: Final answer
   x = 348,921,867.39