Finding the Third Proportional to 655,128 and 1,432,431

Step by Step Solution

1. Step 1: Write the proportion equation
   655,128 : 1,432,431 = 1,432,431 : x
2. Step 2: Convert to fraction form
   655,128/1,432,431 = 1,432,431/x
3. Step 3: Cross multiply
   655,128x = 1,432,431 × 1,432,431
4. Step 4: Simplify right side
   655,128x = 2,051,858,569,761
5. Step 5: Solve for x
   x = 2,051,858,569,761/655,128
6. Step 6: Final answer
   x = 3,131,996.45