Finding the Third Proportional to 1,391,178 and 2,931,774

Step by Step Solution

1. Step 1: Write the proportion equation
   1,391,178 : 2,931,774 = 2,931,774 : x
2. Step 2: Convert to fraction form
   1,391,178/2,931,774 = 2,931,774/x
3. Step 3: Cross multiply
   1,391,178x = 2,931,774 × 2,931,774
4. Step 4: Simplify right side
   1,391,178x = 8,595,298,787,076
5. Step 5: Solve for x
   x = 8,595,298,787,076/1,391,178
6. Step 6: Final answer
   x = 6,178,432.08