Finding the Third Proportional to 1,939,948 and 4,171,688

Step by Step Solution

1. Step 1: Write the proportion equation
   1,939,948 : 4,171,688 = 4,171,688 : x
2. Step 2: Convert to fraction form
   1,939,948/4,171,688 = 4,171,688/x
3. Step 3: Cross multiply
   1,939,948x = 4,171,688 × 4,171,688
4. Step 4: Simplify right side
   1,939,948x = 17,402,980,769,344
5. Step 5: Solve for x
   x = 17,402,980,769,344/1,939,948
6. Step 6: Final answer
   x = 8,970,849.10