Finding the Third Proportional to 764,478 and 918,101.25

Step by Step Solution

1. Step 1: Write the proportion equation
   764,478 : 918,101.25 = 918,101.25 : x
2. Step 2: Convert to fraction form
   764,478/918,101.25 = 918,101.25/x
3. Step 3: Cross multiply
   764,478x = 918,101.25 × 918,101.25
4. Step 4: Simplify right side
   764,478x = 842,909,905,251.56
5. Step 5: Solve for x
   x = 842,909,905,251.56/764,478
6. Step 6: Final answer
   x = 1,102,595.37