Finding the Third Proportional to 607,066.50 and 877,036.50

Step by Step Solution

1. Step 1: Write the proportion equation
   607,066.50 : 877,036.50 = 877,036.50 : x
2. Step 2: Convert to fraction form
   607,066.50/877,036.50 = 877,036.50/x
3. Step 3: Cross multiply
   607,066.50x = 877,036.50 × 877,036.50
4. Step 4: Simplify right side
   607,066.50x = 769,193,022,332.25
5. Step 5: Solve for x
   x = 769,193,022,332.25/607,066.50
6. Step 6: Final answer
   x = 1,267,065.51