Finding the Third Proportional to 139,074 and 297,840

Step by Step Solution

1. Step 1: Write the proportion equation
   139,074 : 297,840 = 297,840 : x
2. Step 2: Convert to fraction form
   139,074/297,840 = 297,840/x
3. Step 3: Cross multiply
   139,074x = 297,840 × 297,840
4. Step 4: Simplify right side
   139,074x = 88,708,665,600
5. Step 5: Solve for x
   x = 88,708,665,600/139,074
6. Step 6: Final answer
   x = 637,852.26