Finding the Third Proportional to 1,708,776 and 3,638,412

Step by Step Solution

1. Step 1: Write the proportion equation
   1,708,776 : 3,638,412 = 3,638,412 : x
2. Step 2: Convert to fraction form
   1,708,776/3,638,412 = 3,638,412/x
3. Step 3: Cross multiply
   1,708,776x = 3,638,412 × 3,638,412
4. Step 4: Simplify right side
   1,708,776x = 13,238,041,881,744
5. Step 5: Solve for x
   x = 13,238,041,881,744/1,708,776
6. Step 6: Final answer
   x = 7,747,090.25