Finding the Third Proportional to 189,826,540 and 416,123,532

Step by Step Solution

1. Step 1: Write the proportion equation
   189,826,540 : 416,123,532 = 416,123,532 : x
2. Step 2: Convert to fraction form
   189,826,540/416,123,532 = 416,123,532/x
3. Step 3: Cross multiply
   189,826,540x = 416,123,532 × 416,123,532
4. Step 4: Simplify right side
   189,826,540x = 173,158,793,884,155,008
5. Step 5: Solve for x
   x = 173,158,793,884,155,008/189,826,540
6. Step 6: Final answer
   x = 912,194,858.97