Finding the Third Proportional to 3,364,746,869.81 and 7,321,983,978.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,364,746,869.81 : 7,321,983,978.94 = 7,321,983,978.94 : x
2. Step 2: Convert to fraction form
   3,364,746,869.81/7,321,983,978.94 = 7,321,983,978.94/x
3. Step 3: Cross multiply
   3,364,746,869.81x = 7,321,983,978.94 × 7,321,983,978.94
4. Step 4: Simplify right side
   3,364,746,869.81x = 53,611,449,387,818,893,312
5. Step 5: Solve for x
   x = 53,611,449,387,818,893,312/3,364,746,869.81
6. Step 6: Final answer
   x = 15,933,278,627.53