Finding the Third Proportional to 4,505,178 and 9,329,736

Step by Step Solution

1. Step 1: Write the proportion equation
   4,505,178 : 9,329,736 = 9,329,736 : x
2. Step 2: Convert to fraction form
   4,505,178/9,329,736 = 9,329,736/x
3. Step 3: Cross multiply
   4,505,178x = 9,329,736 × 9,329,736
4. Step 4: Simplify right side
   4,505,178x = 87,043,973,829,696
5. Step 5: Solve for x
   x = 87,043,973,829,696/4,505,178
6. Step 6: Final answer
   x = 19,320,873.41