Finding the Third Proportional to 3,213,688 and 4,406,676

Step by Step Solution

1. Step 1: Write the proportion equation
   3,213,688 : 4,406,676 = 4,406,676 : x
2. Step 2: Convert to fraction form
   3,213,688/4,406,676 = 4,406,676/x
3. Step 3: Cross multiply
   3,213,688x = 4,406,676 × 4,406,676
4. Step 4: Simplify right side
   3,213,688x = 19,418,793,368,976
5. Step 5: Solve for x
   x = 19,418,793,368,976/3,213,688
6. Step 6: Final answer
   x = 6,042,526.02