Finding the Third Proportional to 861,878 and 1,748,380

Step by Step Solution

1. Step 1: Write the proportion equation
   861,878 : 1,748,380 = 1,748,380 : x
2. Step 2: Convert to fraction form
   861,878/1,748,380 = 1,748,380/x
3. Step 3: Cross multiply
   861,878x = 1,748,380 × 1,748,380
4. Step 4: Simplify right side
   861,878x = 3,056,832,624,400
5. Step 5: Solve for x
   x = 3,056,832,624,400/861,878
6. Step 6: Final answer
   x = 3,546,711.51