Finding the Third Proportional to 108,900,768 and 168,705,144

Step by Step Solution

1. Step 1: Write the proportion equation
   108,900,768 : 168,705,144 = 168,705,144 : x
2. Step 2: Convert to fraction form
   108,900,768/168,705,144 = 168,705,144/x
3. Step 3: Cross multiply
   108,900,768x = 168,705,144 × 168,705,144
4. Step 4: Simplify right side
   108,900,768x = 28,461,425,612,060,736
5. Step 5: Solve for x
   x = 28,461,425,612,060,736/108,900,768
6. Step 6: Final answer
   x = 261,351,927.40