Finding the Third Proportional to 9,428,135,328 and 13,109,068,566

Step by Step Solution

1. Step 1: Write the proportion equation
   9,428,135,328 : 13,109,068,566 = 13,109,068,566 : x
2. Step 2: Convert to fraction form
   9,428,135,328/13,109,068,566 = 13,109,068,566/x
3. Step 3: Cross multiply
   9,428,135,328x = 13,109,068,566 × 13,109,068,566
4. Step 4: Simplify right side
   9,428,135,328x = 171,847,678,668,089,294,848
5. Step 5: Solve for x
   x = 171,847,678,668,089,294,848/9,428,135,328
6. Step 6: Final answer
   x = 18,227,112,009.91