Finding the Third Proportional to 139,004 and 297,691

Step by Step Solution

1. Step 1: Write the proportion equation
   139,004 : 297,691 = 297,691 : x
2. Step 2: Convert to fraction form
   139,004/297,691 = 297,691/x
3. Step 3: Cross multiply
   139,004x = 297,691 × 297,691
4. Step 4: Simplify right side
   139,004x = 88,619,931,481
5. Step 5: Solve for x
   x = 88,619,931,481/139,004
6. Step 6: Final answer
   x = 637,535.12