Finding the Third Proportional to 3,645,145 and 5,610,603

Step by Step Solution

1. Step 1: Write the proportion equation
   3,645,145 : 5,610,603 = 5,610,603 : x
2. Step 2: Convert to fraction form
   3,645,145/5,610,603 = 5,610,603/x
3. Step 3: Cross multiply
   3,645,145x = 5,610,603 × 5,610,603
4. Step 4: Simplify right side
   3,645,145x = 31,478,866,023,609
5. Step 5: Solve for x
   x = 31,478,866,023,609/3,645,145
6. Step 6: Final answer
   x = 8,635,833.70