Finding the Third Proportional to 10,010,989,638 and 13,633,259,130

Step by Step Solution

1. Step 1: Write the proportion equation
   10,010,989,638 : 13,633,259,130 = 13,633,259,130 : x
2. Step 2: Convert to fraction form
   10,010,989,638/13,633,259,130 = 13,633,259,130/x
3. Step 3: Cross multiply
   10,010,989,638x = 13,633,259,130 × 13,633,259,130
4. Step 4: Simplify right side
   10,010,989,638x = 185,865,754,505,728,360,448
5. Step 5: Solve for x
   x = 185,865,754,505,728,360,448/10,010,989,638
6. Step 6: Final answer
   x = 18,566,171,899.75