Finding the Third Proportional to 5,921,619 and 8,946,945

Step by Step Solution

1. Step 1: Write the proportion equation
   5,921,619 : 8,946,945 = 8,946,945 : x
2. Step 2: Convert to fraction form
   5,921,619/8,946,945 = 8,946,945/x
3. Step 3: Cross multiply
   5,921,619x = 8,946,945 × 8,946,945
4. Step 4: Simplify right side
   5,921,619x = 80,047,824,833,025
5. Step 5: Solve for x
   x = 80,047,824,833,025/5,921,619
6. Step 6: Final answer
   x = 13,517,895.16