Finding the Third Proportional to 1,720,259 and 3,645,606

Step by Step Solution

1. Step 1: Write the proportion equation
   1,720,259 : 3,645,606 = 3,645,606 : x
2. Step 2: Convert to fraction form
   1,720,259/3,645,606 = 3,645,606/x
3. Step 3: Cross multiply
   1,720,259x = 3,645,606 × 3,645,606
4. Step 4: Simplify right side
   1,720,259x = 13,290,443,107,236
5. Step 5: Solve for x
   x = 13,290,443,107,236/1,720,259
6. Step 6: Final answer
   x = 7,725,838.44