Finding the Third Proportional to 89,391,329 and 136,686,122

Step by Step Solution

1. Step 1: Write the proportion equation
   89,391,329 : 136,686,122 = 136,686,122 : x
2. Step 2: Convert to fraction form
   89,391,329/136,686,122 = 136,686,122/x
3. Step 3: Cross multiply
   89,391,329x = 136,686,122 × 136,686,122
4. Step 4: Simplify right side
   89,391,329x = 18,683,095,947,398,884
5. Step 5: Solve for x
   x = 18,683,095,947,398,884/89,391,329
6. Step 6: Final answer
   x = 209,003,447.61