Finding the Third Proportional to 763,776 and 1,155,312

Step by Step Solution

1. Step 1: Write the proportion equation
   763,776 : 1,155,312 = 1,155,312 : x
2. Step 2: Convert to fraction form
   763,776/1,155,312 = 1,155,312/x
3. Step 3: Cross multiply
   763,776x = 1,155,312 × 1,155,312
4. Step 4: Simplify right side
   763,776x = 1,334,745,817,344
5. Step 5: Solve for x
   x = 1,334,745,817,344/763,776
6. Step 6: Final answer
   x = 1,747,561.87