Finding the Third Proportional to 139,360.50 and 296,703

Step by Step Solution

1. Step 1: Write the proportion equation
   139,360.50 : 296,703 = 296,703 : x
2. Step 2: Convert to fraction form
   139,360.50/296,703 = 296,703/x
3. Step 3: Cross multiply
   139,360.50x = 296,703 × 296,703
4. Step 4: Simplify right side
   139,360.50x = 88,032,670,209
5. Step 5: Solve for x
   x = 88,032,670,209/139,360.50
6. Step 6: Final answer
   x = 631,690.26