Finding the Third Proportional to 77,016,440 and 169,147,216

Step by Step Solution

1. Step 1: Write the proportion equation
   77,016,440 : 169,147,216 = 169,147,216 : x
2. Step 2: Convert to fraction form
   77,016,440/169,147,216 = 169,147,216/x
3. Step 3: Cross multiply
   77,016,440x = 169,147,216 × 169,147,216
4. Step 4: Simplify right side
   77,016,440x = 28,610,780,680,550,656
5. Step 5: Solve for x
   x = 28,610,780,680,550,656/77,016,440
6. Step 6: Final answer
   x = 371,489,264.90