Finding the Third Proportional to 3,658,490 and 5,434,699

Step by Step Solution

1. Step 1: Write the proportion equation
   3,658,490 : 5,434,699 = 5,434,699 : x
2. Step 2: Convert to fraction form
   3,658,490/5,434,699 = 5,434,699/x
3. Step 3: Cross multiply
   3,658,490x = 5,434,699 × 5,434,699
4. Step 4: Simplify right side
   3,658,490x = 29,535,953,220,601
5. Step 5: Solve for x
   x = 29,535,953,220,601/3,658,490
6. Step 6: Final answer
   x = 8,073,263.35