Finding the Third Proportional to 1,663,712 and 3,406,256

Step by Step Solution

1. Step 1: Write the proportion equation
   1,663,712 : 3,406,256 = 3,406,256 : x
2. Step 2: Convert to fraction form
   1,663,712/3,406,256 = 3,406,256/x
3. Step 3: Cross multiply
   1,663,712x = 3,406,256 × 3,406,256
4. Step 4: Simplify right side
   1,663,712x = 11,602,579,937,536
5. Step 5: Solve for x
   x = 11,602,579,937,536/1,663,712
6. Step 6: Final answer
   x = 6,973,911.31