Finding the Third Proportional to 1,390,875 and 2,931,195

Step by Step Solution

1. Step 1: Write the proportion equation
   1,390,875 : 2,931,195 = 2,931,195 : x
2. Step 2: Convert to fraction form
   1,390,875/2,931,195 = 2,931,195/x
3. Step 3: Cross multiply
   1,390,875x = 2,931,195 × 2,931,195
4. Step 4: Simplify right side
   1,390,875x = 8,591,904,128,025
5. Step 5: Solve for x
   x = 8,591,904,128,025/1,390,875
6. Step 6: Final answer
   x = 6,177,337.38