Finding the Third Proportional to 5,407,020 and 8,111,606.63

Step by Step Solution

1. Step 1: Write the proportion equation
   5,407,020 : 8,111,606.63 = 8,111,606.63 : x
2. Step 2: Convert to fraction form
   5,407,020/8,111,606.63 = 8,111,606.63/x
3. Step 3: Cross multiply
   5,407,020x = 8,111,606.63 × 8,111,606.63
4. Step 4: Simplify right side
   5,407,020x = 65,798,162,038,743.89
5. Step 5: Solve for x
   x = 65,798,162,038,743.89/5,407,020
6. Step 6: Final answer
   x = 12,169,025.09