Finding the Third Proportional to 139,393.50 and 296,769

Step by Step Solution

1. Step 1: Write the proportion equation
   139,393.50 : 296,769 = 296,769 : x
2. Step 2: Convert to fraction form
   139,393.50/296,769 = 296,769/x
3. Step 3: Cross multiply
   139,393.50x = 296,769 × 296,769
4. Step 4: Simplify right side
   139,393.50x = 88,071,839,361
5. Step 5: Solve for x
   x = 88,071,839,361/139,393.50
6. Step 6: Final answer
   x = 631,821.71