Finding the Third Proportional to 199,677.50 and 434,347

Step by Step Solution

1. Step 1: Write the proportion equation
   199,677.50 : 434,347 = 434,347 : x
2. Step 2: Convert to fraction form
   199,677.50/434,347 = 434,347/x
3. Step 3: Cross multiply
   199,677.50x = 434,347 × 434,347
4. Step 4: Simplify right side
   199,677.50x = 188,657,316,409
5. Step 5: Solve for x
   x = 188,657,316,409/199,677.50
6. Step 6: Final answer
   x = 944,810.09