Finding the Third Proportional to 28,197,709,902 and 42,659,819,536

Step by Step Solution

1. Step 1: Write the proportion equation
   28,197,709,902 : 42,659,819,536 = 42,659,819,536 : x
2. Step 2: Convert to fraction form
   28,197,709,902/42,659,819,536 = 42,659,819,536/x
3. Step 3: Cross multiply
   28,197,709,902x = 42,659,819,536 × 42,659,819,536
4. Step 4: Simplify right side
   28,197,709,902x = 1,819,860,202,844,087,386,112
5. Step 5: Solve for x
   x = 1,819,860,202,844,087,386,112/28,197,709,902
6. Step 6: Final answer
   x = 64,539,290,927.13