Finding the Third Proportional to 1,782,402 and 3,711,685

Step by Step Solution

1. Step 1: Write the proportion equation
   1,782,402 : 3,711,685 = 3,711,685 : x
2. Step 2: Convert to fraction form
   1,782,402/3,711,685 = 3,711,685/x
3. Step 3: Cross multiply
   1,782,402x = 3,711,685 × 3,711,685
4. Step 4: Simplify right side
   1,782,402x = 13,776,605,539,225
5. Step 5: Solve for x
   x = 13,776,605,539,225/1,782,402
6. Step 6: Final answer
   x = 7,729,235.91