Finding the Third Proportional to 642,160 and 1,017,672

Step by Step Solution

1. Step 1: Write the proportion equation
   642,160 : 1,017,672 = 1,017,672 : x
2. Step 2: Convert to fraction form
   642,160/1,017,672 = 1,017,672/x
3. Step 3: Cross multiply
   642,160x = 1,017,672 × 1,017,672
4. Step 4: Simplify right side
   642,160x = 1,035,656,299,584
5. Step 5: Solve for x
   x = 1,035,656,299,584/642,160
6. Step 6: Final answer
   x = 1,612,769.87