Finding the Third Proportional to 51,817,499,973 and 79,611,861,738

Step by Step Solution

1. Step 1: Write the proportion equation
   51,817,499,973 : 79,611,861,738 = 79,611,861,738 : x
2. Step 2: Convert to fraction form
   51,817,499,973/79,611,861,738 = 79,611,861,738/x
3. Step 3: Cross multiply
   51,817,499,973x = 79,611,861,738 × 79,611,861,738
4. Step 4: Simplify right side
   51,817,499,973x = 6,338,048,529,390,428,487,680
5. Step 5: Solve for x
   x = 6,338,048,529,390,428,487,680/51,817,499,973
6. Step 6: Final answer
   x = 122,314,826,703.20