Finding the Third Proportional to 1,891,788 and 4,151,478

Step by Step Solution

1. Step 1: Write the proportion equation
   1,891,788 : 4,151,478 = 4,151,478 : x
2. Step 2: Convert to fraction form
   1,891,788/4,151,478 = 4,151,478/x
3. Step 3: Cross multiply
   1,891,788x = 4,151,478 × 4,151,478
4. Step 4: Simplify right side
   1,891,788x = 17,234,769,584,484
5. Step 5: Solve for x
   x = 17,234,769,584,484/1,891,788
6. Step 6: Final answer
   x = 9,110,307.07