Finding the Third Proportional to 76,760,478 and 109,768,389

Step by Step Solution

1. Step 1: Write the proportion equation
   76,760,478 : 109,768,389 = 109,768,389 : x
2. Step 2: Convert to fraction form
   76,760,478/109,768,389 = 109,768,389/x
3. Step 3: Cross multiply
   76,760,478x = 109,768,389 × 109,768,389
4. Step 4: Simplify right side
   76,760,478x = 12,049,099,223,655,320
5. Step 5: Solve for x
   x = 12,049,099,223,655,320/76,760,478
6. Step 6: Final answer
   x = 156,970,091.09