Finding the Third Proportional to 137,836 and 296,790.50

Step by Step Solution

1. Step 1: Write the proportion equation
   137,836 : 296,790.50 = 296,790.50 : x
2. Step 2: Convert to fraction form
   137,836/296,790.50 = 296,790.50/x
3. Step 3: Cross multiply
   137,836x = 296,790.50 × 296,790.50
4. Step 4: Simplify right side
   137,836x = 88,084,600,890.25
5. Step 5: Solve for x
   x = 88,084,600,890.25/137,836
6. Step 6: Final answer
   x = 639,053.66