Finding the Third Proportional to 42,423 and 60,312

Step by Step Solution

1. Step 1: Write the proportion equation
   42,423 : 60,312 = 60,312 : x
2. Step 2: Convert to fraction form
   42,423/60,312 = 60,312/x
3. Step 3: Cross multiply
   42,423x = 60,312 × 60,312
4. Step 4: Simplify right side
   42,423x = 3,637,537,344
5. Step 5: Solve for x
   x = 3,637,537,344/42,423
6. Step 6: Final answer
   x = 85,744.46