Finding the Third Proportional to 970,858 and 2,128,340

Step by Step Solution

1. Step 1: Write the proportion equation
   970,858 : 2,128,340 = 2,128,340 : x
2. Step 2: Convert to fraction form
   970,858/2,128,340 = 2,128,340/x
3. Step 3: Cross multiply
   970,858x = 2,128,340 × 2,128,340
4. Step 4: Simplify right side
   970,858x = 4,529,831,155,600
5. Step 5: Solve for x
   x = 4,529,831,155,600/970,858
6. Step 6: Final answer
   x = 4,665,801.96