Finding the Third Proportional to 199,506 and 430,663.50

Step by Step Solution

1. Step 1: Write the proportion equation
   199,506 : 430,663.50 = 430,663.50 : x
2. Step 2: Convert to fraction form
   199,506/430,663.50 = 430,663.50/x
3. Step 3: Cross multiply
   199,506x = 430,663.50 × 430,663.50
4. Step 4: Simplify right side
   199,506x = 185,471,050,232.25
5. Step 5: Solve for x
   x = 185,471,050,232.25/199,506
6. Step 6: Final answer
   x = 929,651.49