Finding the Third Proportional to 1,391,132 and 2,931,716

Step by Step Solution

1. Step 1: Write the proportion equation
   1,391,132 : 2,931,716 = 2,931,716 : x
2. Step 2: Convert to fraction form
   1,391,132/2,931,716 = 2,931,716/x
3. Step 3: Cross multiply
   1,391,132x = 2,931,716 × 2,931,716
4. Step 4: Simplify right side
   1,391,132x = 8,594,958,704,656
5. Step 5: Solve for x
   x = 8,594,958,704,656/1,391,132
6. Step 6: Final answer
   x = 6,178,391.92