Finding the Third Proportional to 1,663,704 and 3,406,220

Step by Step Solution

1. Step 1: Write the proportion equation
   1,663,704 : 3,406,220 = 3,406,220 : x
2. Step 2: Convert to fraction form
   1,663,704/3,406,220 = 3,406,220/x
3. Step 3: Cross multiply
   1,663,704x = 3,406,220 × 3,406,220
4. Step 4: Simplify right side
   1,663,704x = 11,602,334,688,400
5. Step 5: Solve for x
   x = 11,602,334,688,400/1,663,704
6. Step 6: Final answer
   x = 6,973,797.44