Finding the Third Proportional to 284,386 and 429,603.38

Step by Step Solution

1. Step 1: Write the proportion equation
   284,386 : 429,603.38 = 429,603.38 : x
2. Step 2: Convert to fraction form
   284,386/429,603.38 = 429,603.38/x
3. Step 3: Cross multiply
   284,386x = 429,603.38 × 429,603.38
4. Step 4: Simplify right side
   284,386x = 184,559,059,811.39
5. Step 5: Solve for x
   x = 184,559,059,811.39/284,386
6. Step 6: Final answer
   x = 648,973.79