Finding the Third Proportional to 1,236,432 and 2,636,172

Step by Step Solution

1. Step 1: Write the proportion equation
   1,236,432 : 2,636,172 = 2,636,172 : x
2. Step 2: Convert to fraction form
   1,236,432/2,636,172 = 2,636,172/x
3. Step 3: Cross multiply
   1,236,432x = 2,636,172 × 2,636,172
4. Step 4: Simplify right side
   1,236,432x = 6,949,402,813,584
5. Step 5: Solve for x
   x = 6,949,402,813,584/1,236,432
6. Step 6: Final answer
   x = 5,620,529.73