Finding the Third Proportional to 1,620,174 and 3,545,484

Step by Step Solution

1. Step 1: Write the proportion equation
   1,620,174 : 3,545,484 = 3,545,484 : x
2. Step 2: Convert to fraction form
   1,620,174/3,545,484 = 3,545,484/x
3. Step 3: Cross multiply
   1,620,174x = 3,545,484 × 3,545,484
4. Step 4: Simplify right side
   1,620,174x = 12,570,456,794,256
5. Step 5: Solve for x
   x = 12,570,456,794,256/1,620,174
6. Step 6: Final answer
   x = 7,758,707.89