Finding the Third Proportional to 194,063,826 and 420,871,156

Step by Step Solution

1. Step 1: Write the proportion equation
   194,063,826 : 420,871,156 = 420,871,156 : x
2. Step 2: Convert to fraction form
   194,063,826/420,871,156 = 420,871,156/x
3. Step 3: Cross multiply
   194,063,826x = 420,871,156 × 420,871,156
4. Step 4: Simplify right side
   194,063,826x = 177,132,529,952,776,320
5. Step 5: Solve for x
   x = 177,132,529,952,776,320/194,063,826
6. Step 6: Final answer
   x = 912,753,982.05