Finding the Third Proportional to 9,185,554 and 19,775,144

Step by Step Solution

1. Step 1: Write the proportion equation
   9,185,554 : 19,775,144 = 19,775,144 : x
2. Step 2: Convert to fraction form
   9,185,554/19,775,144 = 19,775,144/x
3. Step 3: Cross multiply
   9,185,554x = 19,775,144 × 19,775,144
4. Step 4: Simplify right side
   9,185,554x = 391,056,320,220,736
5. Step 5: Solve for x
   x = 391,056,320,220,736/9,185,554
6. Step 6: Final answer
   x = 42,572,970.58