Finding the Third Proportional to 50,766,694 and 78,478,833

Step by Step Solution

1. Step 1: Write the proportion equation
   50,766,694 : 78,478,833 = 78,478,833 : x
2. Step 2: Convert to fraction form
   50,766,694/78,478,833 = 78,478,833/x
3. Step 3: Cross multiply
   50,766,694x = 78,478,833 × 78,478,833
4. Step 4: Simplify right side
   50,766,694x = 6,158,927,229,041,889
5. Step 5: Solve for x
   x = 6,158,927,229,041,889/50,766,694
6. Step 6: Final answer
   x = 121,318,264.87