Finding the Third Proportional to 64,985,904 and 142,727,112

Step by Step Solution

1. Step 1: Write the proportion equation
   64,985,904 : 142,727,112 = 142,727,112 : x
2. Step 2: Convert to fraction form
   64,985,904/142,727,112 = 142,727,112/x
3. Step 3: Cross multiply
   64,985,904x = 142,727,112 × 142,727,112
4. Step 4: Simplify right side
   64,985,904x = 20,371,028,499,860,544
5. Step 5: Solve for x
   x = 20,371,028,499,860,544/64,985,904
6. Step 6: Final answer
   x = 313,468,417.70