Finding the Third Proportional to 438,196.63 and 655,543.37

Step by Step Solution

1. Step 1: Write the proportion equation
   438,196.63 : 655,543.37 = 655,543.37 : x
2. Step 2: Convert to fraction form
   438,196.63/655,543.37 = 655,543.37/x
3. Step 3: Cross multiply
   438,196.63x = 655,543.37 × 655,543.37
4. Step 4: Simplify right side
   438,196.63x = 429,737,112,825.38
5. Step 5: Solve for x
   x = 429,737,112,825.38/438,196.63
6. Step 6: Final answer
   x = 980,694.70