Finding the Third Proportional to 42,312 and 59,436

Step by Step Solution

1. Step 1: Write the proportion equation
   42,312 : 59,436 = 59,436 : x
2. Step 2: Convert to fraction form
   42,312/59,436 = 59,436/x
3. Step 3: Cross multiply
   42,312x = 59,436 × 59,436
4. Step 4: Simplify right side
   42,312x = 3,532,638,096
5. Step 5: Solve for x
   x = 3,532,638,096/42,312
6. Step 6: Final answer
   x = 83,490.22