Finding the Third Proportional to 938,423 and 2,009,686

Step by Step Solution

1. Step 1: Write the proportion equation
   938,423 : 2,009,686 = 2,009,686 : x
2. Step 2: Convert to fraction form
   938,423/2,009,686 = 2,009,686/x
3. Step 3: Cross multiply
   938,423x = 2,009,686 × 2,009,686
4. Step 4: Simplify right side
   938,423x = 4,038,837,818,596
5. Step 5: Solve for x
   x = 4,038,837,818,596/938,423
6. Step 6: Final answer
   x = 4,303,856.38