Finding the Third Proportional to 349,878.23 and 763,061.77

Step by Step Solution

1. Step 1: Write the proportion equation
   349,878.23 : 763,061.77 = 763,061.77 : x
2. Step 2: Convert to fraction form
   349,878.23/763,061.77 = 763,061.77/x
3. Step 3: Cross multiply
   349,878.23x = 763,061.77 × 763,061.77
4. Step 4: Simplify right side
   349,878.23x = 582,263,258,158.74
5. Step 5: Solve for x
   x = 582,263,258,158.74/349,878.23
6. Step 6: Final answer
   x = 1,664,188.28