Finding the Third Proportional to 9,978,930 and 13,903,164

Step by Step Solution

1. Step 1: Write the proportion equation
   9,978,930 : 13,903,164 = 13,903,164 : x
2. Step 2: Convert to fraction form
   9,978,930/13,903,164 = 13,903,164/x
3. Step 3: Cross multiply
   9,978,930x = 13,903,164 × 13,903,164
4. Step 4: Simplify right side
   9,978,930x = 193,297,969,210,896
5. Step 5: Solve for x
   x = 193,297,969,210,896/9,978,930
6. Step 6: Final answer
   x = 19,370,610.80