Finding the Third Proportional to 42,733,087 and 86,976,386

Step by Step Solution

1. Step 1: Write the proportion equation
   42,733,087 : 86,976,386 = 86,976,386 : x
2. Step 2: Convert to fraction form
   42,733,087/86,976,386 = 86,976,386/x
3. Step 3: Cross multiply
   42,733,087x = 86,976,386 × 86,976,386
4. Step 4: Simplify right side
   42,733,087x = 7,564,891,721,620,996
5. Step 5: Solve for x
   x = 7,564,891,721,620,996/42,733,087
6. Step 6: Final answer
   x = 177,026,567.77