Finding the Third Proportional to 292,215 and 427,812.75

Step by Step Solution

1. Step 1: Write the proportion equation
   292,215 : 427,812.75 = 427,812.75 : x
2. Step 2: Convert to fraction form
   292,215/427,812.75 = 427,812.75/x
3. Step 3: Cross multiply
   292,215x = 427,812.75 × 427,812.75
4. Step 4: Simplify right side
   292,215x = 183,023,749,062.56
5. Step 5: Solve for x
   x = 183,023,749,062.56/292,215
6. Step 6: Final answer
   x = 626,332.49