Finding the Third Proportional to 139,532 and 310,060

Step by Step Solution

1. Step 1: Write the proportion equation
   139,532 : 310,060 = 310,060 : x
2. Step 2: Convert to fraction form
   139,532/310,060 = 310,060/x
3. Step 3: Cross multiply
   139,532x = 310,060 × 310,060
4. Step 4: Simplify right side
   139,532x = 96,137,203,600
5. Step 5: Solve for x
   x = 96,137,203,600/139,532
6. Step 6: Final answer
   x = 688,997.53