Finding the Third Proportional to 50,976,428.63 and 78,399,955.69

Step by Step Solution

1. Step 1: Write the proportion equation
   50,976,428.63 : 78,399,955.69 = 78,399,955.69 : x
2. Step 2: Convert to fraction form
   50,976,428.63/78,399,955.69 = 78,399,955.69/x
3. Step 3: Cross multiply
   50,976,428.63x = 78,399,955.69 × 78,399,955.69
4. Step 4: Simplify right side
   50,976,428.63x = 6,146,553,051,801,964
5. Step 5: Solve for x
   x = 6,146,553,051,801,964/50,976,428.63
6. Step 6: Final answer
   x = 120,576,376.53