Finding the Third Proportional to 4,643,340 and 9,756,696

Step by Step Solution

1. Step 1: Write the proportion equation
   4,643,340 : 9,756,696 = 9,756,696 : x
2. Step 2: Convert to fraction form
   4,643,340/9,756,696 = 9,756,696/x
3. Step 3: Cross multiply
   4,643,340x = 9,756,696 × 9,756,696
4. Step 4: Simplify right side
   4,643,340x = 95,193,116,836,416
5. Step 5: Solve for x
   x = 95,193,116,836,416/4,643,340
6. Step 6: Final answer
   x = 20,501,000.75