Finding the Third Proportional to 423,051 and 611,236.50

Step by Step Solution

1. Step 1: Write the proportion equation
   423,051 : 611,236.50 = 611,236.50 : x
2. Step 2: Convert to fraction form
   423,051/611,236.50 = 611,236.50/x
3. Step 3: Cross multiply
   423,051x = 611,236.50 × 611,236.50
4. Step 4: Simplify right side
   423,051x = 373,610,058,932.25
5. Step 5: Solve for x
   x = 373,610,058,932.25/423,051
6. Step 6: Final answer
   x = 883,132.43