Finding the Third Proportional to 13,689,895 and 20,492,196

Step by Step Solution

1. Step 1: Write the proportion equation
   13,689,895 : 20,492,196 = 20,492,196 : x
2. Step 2: Convert to fraction form
   13,689,895/20,492,196 = 20,492,196/x
3. Step 3: Cross multiply
   13,689,895x = 20,492,196 × 20,492,196
4. Step 4: Simplify right side
   13,689,895x = 419,930,096,902,416
5. Step 5: Solve for x
   x = 419,930,096,902,416/13,689,895
6. Step 6: Final answer
   x = 30,674,457.10