Finding the Third Proportional to 50,735,216 and 78,434,409

Step by Step Solution

1. Step 1: Write the proportion equation
   50,735,216 : 78,434,409 = 78,434,409 : x
2. Step 2: Convert to fraction form
   50,735,216/78,434,409 = 78,434,409/x
3. Step 3: Cross multiply
   50,735,216x = 78,434,409 × 78,434,409
4. Step 4: Simplify right side
   50,735,216x = 6,151,956,515,179,281
5. Step 5: Solve for x
   x = 6,151,956,515,179,281/50,735,216
6. Step 6: Final answer
   x = 121,256,141.20