Finding the Third Proportional to 970,908 and 2,128,440

Step by Step Solution

1. Step 1: Write the proportion equation
   970,908 : 2,128,440 = 2,128,440 : x
2. Step 2: Convert to fraction form
   970,908/2,128,440 = 2,128,440/x
3. Step 3: Cross multiply
   970,908x = 2,128,440 × 2,128,440
4. Step 4: Simplify right side
   970,908x = 4,530,256,833,600
5. Step 5: Solve for x
   x = 4,530,256,833,600/970,908
6. Step 6: Final answer
   x = 4,666,000.11