Finding the Third Proportional to 2,190,456 and 4,793,178

Step by Step Solution

1. Step 1: Write the proportion equation
   2,190,456 : 4,793,178 = 4,793,178 : x
2. Step 2: Convert to fraction form
   2,190,456/4,793,178 = 4,793,178/x
3. Step 3: Cross multiply
   2,190,456x = 4,793,178 × 4,793,178
4. Step 4: Simplify right side
   2,190,456x = 22,974,555,339,684
5. Step 5: Solve for x
   x = 22,974,555,339,684/2,190,456
6. Step 6: Final answer
   x = 10,488,480.64