Finding the Third Proportional to 4,139,586 and 9,048,672

Step by Step Solution

1. Step 1: Write the proportion equation
   4,139,586 : 9,048,672 = 9,048,672 : x
2. Step 2: Convert to fraction form
   4,139,586/9,048,672 = 9,048,672/x
3. Step 3: Cross multiply
   4,139,586x = 9,048,672 × 9,048,672
4. Step 4: Simplify right side
   4,139,586x = 81,878,464,963,584
5. Step 5: Solve for x
   x = 81,878,464,963,584/4,139,586
6. Step 6: Final answer
   x = 19,779,384.93