Finding the Third Proportional to 1,620,185 and 3,545,506

Step by Step Solution

1. Step 1: Write the proportion equation
   1,620,185 : 3,545,506 = 3,545,506 : x
2. Step 2: Convert to fraction form
   1,620,185/3,545,506 = 3,545,506/x
3. Step 3: Cross multiply
   1,620,185x = 3,545,506 × 3,545,506
4. Step 4: Simplify right side
   1,620,185x = 12,570,612,796,036
5. Step 5: Solve for x
   x = 12,570,612,796,036/1,620,185
6. Step 6: Final answer
   x = 7,758,751.50