Finding the Third Proportional to 1,620,186 and 3,545,507

Step by Step Solution

1. Step 1: Write the proportion equation
   1,620,186 : 3,545,507 = 3,545,507 : x
2. Step 2: Convert to fraction form
   1,620,186/3,545,507 = 3,545,507/x
3. Step 3: Cross multiply
   1,620,186x = 3,545,507 × 3,545,507
4. Step 4: Simplify right side
   1,620,186x = 12,570,619,887,049
5. Step 5: Solve for x
   x = 12,570,619,887,049/1,620,186
6. Step 6: Final answer
   x = 7,758,751.09