Finding the Third Proportional to 1,238,432 and 2,529,328

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238,432 : 2,529,328 = 2,529,328 : x
2. Step 2: Convert to fraction form
   1,238,432/2,529,328 = 2,529,328/x
3. Step 3: Cross multiply
   1,238,432x = 2,529,328 × 2,529,328
4. Step 4: Simplify right side
   1,238,432x = 6,397,500,131,584
5. Step 5: Solve for x
   x = 6,397,500,131,584/1,238,432
6. Step 6: Final answer
   x = 5,165,806.55