Finding the Third Proportional to 784,641 and 1,663,440

Step by Step Solution

1. Step 1: Write the proportion equation
   784,641 : 1,663,440 = 1,663,440 : x
2. Step 2: Convert to fraction form
   784,641/1,663,440 = 1,663,440/x
3. Step 3: Cross multiply
   784,641x = 1,663,440 × 1,663,440
4. Step 4: Simplify right side
   784,641x = 2,767,032,633,600
5. Step 5: Solve for x
   x = 2,767,032,633,600/784,641
6. Step 6: Final answer
   x = 3,526,495.09