Finding the Third Proportional to 138,755.25 and 300,838.50

Step by Step Solution

1. Step 1: Write the proportion equation
   138,755.25 : 300,838.50 = 300,838.50 : x
2. Step 2: Convert to fraction form
   138,755.25/300,838.50 = 300,838.50/x
3. Step 3: Cross multiply
   138,755.25x = 300,838.50 × 300,838.50
4. Step 4: Simplify right side
   138,755.25x = 90,503,803,082.25
5. Step 5: Solve for x
   x = 90,503,803,082.25/138,755.25
6. Step 6: Final answer
   x = 652,254.98