Finding the Third Proportional to 784,756 and 1,243,470

Step by Step Solution

1. Step 1: Write the proportion equation
   784,756 : 1,243,470 = 1,243,470 : x
2. Step 2: Convert to fraction form
   784,756/1,243,470 = 1,243,470/x
3. Step 3: Cross multiply
   784,756x = 1,243,470 × 1,243,470
4. Step 4: Simplify right side
   784,756x = 1,546,217,640,900
5. Step 5: Solve for x
   x = 1,546,217,640,900/784,756
6. Step 6: Final answer
   x = 1,970,316.43