Finding the Third Proportional to 3,181,320 and 6,731,128

Step by Step Solution

1. Step 1: Write the proportion equation
   3,181,320 : 6,731,128 = 6,731,128 : x
2. Step 2: Convert to fraction form
   3,181,320/6,731,128 = 6,731,128/x
3. Step 3: Cross multiply
   3,181,320x = 6,731,128 × 6,731,128
4. Step 4: Simplify right side
   3,181,320x = 45,308,084,152,384
5. Step 5: Solve for x
   x = 45,308,084,152,384/3,181,320
6. Step 6: Final answer
   x = 14,241,913.47