Finding the Third Proportional to 1,720,257 and 3,645,602

Step by Step Solution

1. Step 1: Write the proportion equation
   1,720,257 : 3,645,602 = 3,645,602 : x
2. Step 2: Convert to fraction form
   1,720,257/3,645,602 = 3,645,602/x
3. Step 3: Cross multiply
   1,720,257x = 3,645,602 × 3,645,602
4. Step 4: Simplify right side
   1,720,257x = 13,290,413,942,404
5. Step 5: Solve for x
   x = 13,290,413,942,404/1,720,257
6. Step 6: Final answer
   x = 7,725,830.47