Finding the Third Proportional to 1,620,272 and 3,545,528

Step by Step Solution

1. Step 1: Write the proportion equation
   1,620,272 : 3,545,528 = 3,545,528 : x
2. Step 2: Convert to fraction form
   1,620,272/3,545,528 = 3,545,528/x
3. Step 3: Cross multiply
   1,620,272x = 3,545,528 × 3,545,528
4. Step 4: Simplify right side
   1,620,272x = 12,570,768,798,784
5. Step 5: Solve for x
   x = 12,570,768,798,784/1,620,272
6. Step 6: Final answer
   x = 7,758,431.18