Finding the Third Proportional to 299,061 and 426,559.50

Step by Step Solution

1. Step 1: Write the proportion equation
   299,061 : 426,559.50 = 426,559.50 : x
2. Step 2: Convert to fraction form
   299,061/426,559.50 = 426,559.50/x
3. Step 3: Cross multiply
   299,061x = 426,559.50 × 426,559.50
4. Step 4: Simplify right side
   299,061x = 181,953,007,040.25
5. Step 5: Solve for x
   x = 181,953,007,040.25/299,061
6. Step 6: Final answer
   x = 608,414.36