Finding the Third Proportional to 9,978,926 and 13,903,156

Step by Step Solution

1. Step 1: Write the proportion equation
   9,978,926 : 13,903,156 = 13,903,156 : x
2. Step 2: Convert to fraction form
   9,978,926/13,903,156 = 13,903,156/x
3. Step 3: Cross multiply
   9,978,926x = 13,903,156 × 13,903,156
4. Step 4: Simplify right side
   9,978,926x = 193,297,746,760,336
5. Step 5: Solve for x
   x = 193,297,746,760,336/9,978,926
6. Step 6: Final answer
   x = 19,370,596.27