Finding the Third Proportional to 1,478,385 and 3,207,726

Step by Step Solution

1. Step 1: Write the proportion equation
   1,478,385 : 3,207,726 = 3,207,726 : x
2. Step 2: Convert to fraction form
   1,478,385/3,207,726 = 3,207,726/x
3. Step 3: Cross multiply
   1,478,385x = 3,207,726 × 3,207,726
4. Step 4: Simplify right side
   1,478,385x = 10,289,506,091,076
5. Step 5: Solve for x
   x = 10,289,506,091,076/1,478,385
6. Step 6: Final answer
   x = 6,959,963.81