Finding the Third Proportional to 4,139,582 and 9,048,664

Step by Step Solution

1. Step 1: Write the proportion equation
   4,139,582 : 9,048,664 = 9,048,664 : x
2. Step 2: Convert to fraction form
   4,139,582/9,048,664 = 9,048,664/x
3. Step 3: Cross multiply
   4,139,582x = 9,048,664 × 9,048,664
4. Step 4: Simplify right side
   4,139,582x = 81,878,320,184,896
5. Step 5: Solve for x
   x = 81,878,320,184,896/4,139,582
6. Step 6: Final answer
   x = 19,779,369.07