Finding the Third Proportional to 82,263,738 and 127,788,398

Step by Step Solution

1. Step 1: Write the proportion equation
   82,263,738 : 127,788,398 = 127,788,398 : x
2. Step 2: Convert to fraction form
   82,263,738/127,788,398 = 127,788,398/x
3. Step 3: Cross multiply
   82,263,738x = 127,788,398 × 127,788,398
4. Step 4: Simplify right side
   82,263,738x = 16,329,874,663,406,404
5. Step 5: Solve for x
   x = 16,329,874,663,406,404/82,263,738
6. Step 6: Final answer
   x = 198,506,353.59