Finding the Third Proportional to 539,473.50 and 838,188

Step by Step Solution

1. Step 1: Write the proportion equation
   539,473.50 : 838,188 = 838,188 : x
2. Step 2: Convert to fraction form
   539,473.50/838,188 = 838,188/x
3. Step 3: Cross multiply
   539,473.50x = 838,188 × 838,188
4. Step 4: Simplify right side
   539,473.50x = 702,559,123,344
5. Step 5: Solve for x
   x = 702,559,123,344/539,473.50
6. Step 6: Final answer
   x = 1,302,305.16