Finding the Third Proportional to 761,789.81 and 1,011,259.69

Step by Step Solution

1. Step 1: Write the proportion equation
   761,789.81 : 1,011,259.69 = 1,011,259.69 : x
2. Step 2: Convert to fraction form
   761,789.81/1,011,259.69 = 1,011,259.69/x
3. Step 3: Cross multiply
   761,789.81x = 1,011,259.69 × 1,011,259.69
4. Step 4: Simplify right side
   761,789.81x = 1,022,646,155,562.60
5. Step 5: Solve for x
   x = 1,022,646,155,562.60/761,789.81
6. Step 6: Final answer
   x = 1,342,425.61