Finding the Third Proportional to 139,030 and 299,704

Step by Step Solution

1. Step 1: Write the proportion equation
   139,030 : 299,704 = 299,704 : x
2. Step 2: Convert to fraction form
   139,030/299,704 = 299,704/x
3. Step 3: Cross multiply
   139,030x = 299,704 × 299,704
4. Step 4: Simplify right side
   139,030x = 89,822,487,616
5. Step 5: Solve for x
   x = 89,822,487,616/139,030
6. Step 6: Final answer
   x = 646,065.51