Finding the Third Proportional to 13,866,180 and 30,918,900

Step by Step Solution

1. Step 1: Write the proportion equation
   13,866,180 : 30,918,900 = 30,918,900 : x
2. Step 2: Convert to fraction form
   13,866,180/30,918,900 = 30,918,900/x
3. Step 3: Cross multiply
   13,866,180x = 30,918,900 × 30,918,900
4. Step 4: Simplify right side
   13,866,180x = 955,978,377,210,000
5. Step 5: Solve for x
   x = 955,978,377,210,000/13,866,180
6. Step 6: Final answer
   x = 68,943,168.00