Finding the Third Proportional to 74,786,428 and 111,880,686

Step by Step Solution

1. Step 1: Write the proportion equation
   74,786,428 : 111,880,686 = 111,880,686 : x
2. Step 2: Convert to fraction form
   74,786,428/111,880,686 = 111,880,686/x
3. Step 3: Cross multiply
   74,786,428x = 111,880,686 × 111,880,686
4. Step 4: Simplify right side
   74,786,428x = 12,517,287,899,830,596
5. Step 5: Solve for x
   x = 12,517,287,899,830,596/74,786,428
6. Step 6: Final answer
   x = 167,373,790.07