Finding the Third Proportional to 572,424 and 777,412.50

Step by Step Solution

1. Step 1: Write the proportion equation
   572,424 : 777,412.50 = 777,412.50 : x
2. Step 2: Convert to fraction form
   572,424/777,412.50 = 777,412.50/x
3. Step 3: Cross multiply
   572,424x = 777,412.50 × 777,412.50
4. Step 4: Simplify right side
   572,424x = 604,370,195,156.25
5. Step 5: Solve for x
   x = 604,370,195,156.25/572,424
6. Step 6: Final answer
   x = 1,055,808.62