Finding the Third Proportional to 128,926,224 and 199,925,064

Step by Step Solution

1. Step 1: Write the proportion equation
   128,926,224 : 199,925,064 = 199,925,064 : x
2. Step 2: Convert to fraction form
   128,926,224/199,925,064 = 199,925,064/x
3. Step 3: Cross multiply
   128,926,224x = 199,925,064 × 199,925,064
4. Step 4: Simplify right side
   128,926,224x = 39,970,031,215,404,096
5. Step 5: Solve for x
   x = 39,970,031,215,404,096/128,926,224
6. Step 6: Final answer
   x = 310,022,507.26