Finding the Third Proportional to 1,663,730 and 3,406,270

Step by Step Solution

1. Step 1: Write the proportion equation
   1,663,730 : 3,406,270 = 3,406,270 : x
2. Step 2: Convert to fraction form
   1,663,730/3,406,270 = 3,406,270/x
3. Step 3: Cross multiply
   1,663,730x = 3,406,270 × 3,406,270
4. Step 4: Simplify right side
   1,663,730x = 11,602,675,312,900
5. Step 5: Solve for x
   x = 11,602,675,312,900/1,663,730
6. Step 6: Final answer
   x = 6,973,893.19