Finding the Third Proportional to 5,905,938 and 8,978,361

Step by Step Solution

1. Step 1: Write the proportion equation
   5,905,938 : 8,978,361 = 8,978,361 : x
2. Step 2: Convert to fraction form
   5,905,938/8,978,361 = 8,978,361/x
3. Step 3: Cross multiply
   5,905,938x = 8,978,361 × 8,978,361
4. Step 4: Simplify right side
   5,905,938x = 80,610,966,246,321
5. Step 5: Solve for x
   x = 80,610,966,246,321/5,905,938
6. Step 6: Final answer
   x = 13,649,138.59