Finding the Third Proportional to 1,891,728 and 4,151,358

Step by Step Solution

1. Step 1: Write the proportion equation
   1,891,728 : 4,151,358 = 4,151,358 : x
2. Step 2: Convert to fraction form
   1,891,728/4,151,358 = 4,151,358/x
3. Step 3: Cross multiply
   1,891,728x = 4,151,358 × 4,151,358
4. Step 4: Simplify right side
   1,891,728x = 17,233,773,244,164
5. Step 5: Solve for x
   x = 17,233,773,244,164/1,891,728
6. Step 6: Final answer
   x = 9,110,069.34