Finding the Third Proportional to 1,890,666 and 4,148,688

Step by Step Solution

1. Step 1: Write the proportion equation
   1,890,666 : 4,148,688 = 4,148,688 : x
2. Step 2: Convert to fraction form
   1,890,666/4,148,688 = 4,148,688/x
3. Step 3: Cross multiply
   1,890,666x = 4,148,688 × 4,148,688
4. Step 4: Simplify right side
   1,890,666x = 17,211,612,121,344
5. Step 5: Solve for x
   x = 17,211,612,121,344/1,890,666
6. Step 6: Final answer
   x = 9,103,465.19