Finding the Third Proportional to 277,208 and 429,060

Step by Step Solution

1. Step 1: Write the proportion equation
   277,208 : 429,060 = 429,060 : x
2. Step 2: Convert to fraction form
   277,208/429,060 = 429,060/x
3. Step 3: Cross multiply
   277,208x = 429,060 × 429,060
4. Step 4: Simplify right side
   277,208x = 184,092,483,600
5. Step 5: Solve for x
   x = 184,092,483,600/277,208
6. Step 6: Final answer
   x = 664,095.13