Finding the Third Proportional to 76,561,696 and 168,003,620

Step by Step Solution

1. Step 1: Write the proportion equation
   76,561,696 : 168,003,620 = 168,003,620 : x
2. Step 2: Convert to fraction form
   76,561,696/168,003,620 = 168,003,620/x
3. Step 3: Cross multiply
   76,561,696x = 168,003,620 × 168,003,620
4. Step 4: Simplify right side
   76,561,696x = 28,225,216,333,104,400
5. Step 5: Solve for x
   x = 28,225,216,333,104,400/76,561,696
6. Step 6: Final answer
   x = 368,659,758.18