Finding the Third Proportional to 3,670,963 and 7,873,366

Step by Step Solution

1. Step 1: Write the proportion equation
   3,670,963 : 7,873,366 = 7,873,366 : x
2. Step 2: Convert to fraction form
   3,670,963/7,873,366 = 7,873,366/x
3. Step 3: Cross multiply
   3,670,963x = 7,873,366 × 7,873,366
4. Step 4: Simplify right side
   3,670,963x = 61,989,892,169,956
5. Step 5: Solve for x
   x = 61,989,892,169,956/3,670,963
6. Step 6: Final answer
   x = 16,886,547.80