Finding the Third Proportional to 71,821,926 and 111,438,147

Step by Step Solution

1. Step 1: Write the proportion equation
   71,821,926 : 111,438,147 = 111,438,147 : x
2. Step 2: Convert to fraction form
   71,821,926/111,438,147 = 111,438,147/x
3. Step 3: Cross multiply
   71,821,926x = 111,438,147 × 111,438,147
4. Step 4: Simplify right side
   71,821,926x = 12,418,460,606,793,608
5. Step 5: Solve for x
   x = 12,418,460,606,793,608/71,821,926
6. Step 6: Final answer
   x = 172,906,259.95