Finding the Third Proportional to 1,537,212 and 2,189,784

Step by Step Solution

1. Step 1: Write the proportion equation
   1,537,212 : 2,189,784 = 2,189,784 : x
2. Step 2: Convert to fraction form
   1,537,212/2,189,784 = 2,189,784/x
3. Step 3: Cross multiply
   1,537,212x = 2,189,784 × 2,189,784
4. Step 4: Simplify right side
   1,537,212x = 4,795,153,966,656
5. Step 5: Solve for x
   x = 4,795,153,966,656/1,537,212
6. Step 6: Final answer
   x = 3,119,383.64