Finding the Third Proportional to 525,003 and 787,342.50

Step by Step Solution

1. Step 1: Write the proportion equation
   525,003 : 787,342.50 = 787,342.50 : x
2. Step 2: Convert to fraction form
   525,003/787,342.50 = 787,342.50/x
3. Step 3: Cross multiply
   525,003x = 787,342.50 × 787,342.50
4. Step 4: Simplify right side
   525,003x = 619,908,212,306.25
5. Step 5: Solve for x
   x = 619,908,212,306.25/525,003
6. Step 6: Final answer
   x = 1,180,770.80