Finding the Third Proportional to 4,628,680 and 9,482,864

Step by Step Solution

1. Step 1: Write the proportion equation
   4,628,680 : 9,482,864 = 9,482,864 : x
2. Step 2: Convert to fraction form
   4,628,680/9,482,864 = 9,482,864/x
3. Step 3: Cross multiply
   4,628,680x = 9,482,864 × 9,482,864
4. Step 4: Simplify right side
   4,628,680x = 89,924,709,642,496
5. Step 5: Solve for x
   x = 89,924,709,642,496/4,628,680
6. Step 6: Final answer
   x = 19,427,722.30