Finding the Third Proportional to 189,190 and 283,263.50

Step by Step Solution

1. Step 1: Write the proportion equation
   189,190 : 283,263.50 = 283,263.50 : x
2. Step 2: Convert to fraction form
   189,190/283,263.50 = 283,263.50/x
3. Step 3: Cross multiply
   189,190x = 283,263.50 × 283,263.50
4. Step 4: Simplify right side
   189,190x = 80,238,210,432.25
5. Step 5: Solve for x
   x = 80,238,210,432.25/189,190
6. Step 6: Final answer
   x = 424,114.44