Finding the Third Proportional to 1,638,526 and 3,355,784

Step by Step Solution

1. Step 1: Write the proportion equation
   1,638,526 : 3,355,784 = 3,355,784 : x
2. Step 2: Convert to fraction form
   1,638,526/3,355,784 = 3,355,784/x
3. Step 3: Cross multiply
   1,638,526x = 3,355,784 × 3,355,784
4. Step 4: Simplify right side
   1,638,526x = 11,261,286,254,656
5. Step 5: Solve for x
   x = 11,261,286,254,656/1,638,526
6. Step 6: Final answer
   x = 6,872,815.11