Finding the Third Proportional to 37,172,589 and 77,400,007

Step by Step Solution

1. Step 1: Write the proportion equation
   37,172,589 : 77,400,007 = 77,400,007 : x
2. Step 2: Convert to fraction form
   37,172,589/77,400,007 = 77,400,007/x
3. Step 3: Cross multiply
   37,172,589x = 77,400,007 × 77,400,007
4. Step 4: Simplify right side
   37,172,589x = 5,990,761,083,600,049
5. Step 5: Solve for x
   x = 5,990,761,083,600,049/37,172,589
6. Step 6: Final answer
   x = 161,160,716.67