Finding the Third Proportional to 69,426,089 and 149,300,571

Step by Step Solution

1. Step 1: Write the proportion equation
   69,426,089 : 149,300,571 = 149,300,571 : x
2. Step 2: Convert to fraction form
   69,426,089/149,300,571 = 149,300,571/x
3. Step 3: Cross multiply
   69,426,089x = 149,300,571 × 149,300,571
4. Step 4: Simplify right side
   69,426,089x = 22,290,660,500,926,040
5. Step 5: Solve for x
   x = 22,290,660,500,926,040/69,426,089
6. Step 6: Final answer
   x = 321,070,376.02