Finding the Third Proportional to 188,838,814 and 406,375,476

Step by Step Solution

1. Step 1: Write the proportion equation
   188,838,814 : 406,375,476 = 406,375,476 : x
2. Step 2: Convert to fraction form
   188,838,814/406,375,476 = 406,375,476/x
3. Step 3: Cross multiply
   188,838,814x = 406,375,476 × 406,375,476
4. Step 4: Simplify right side
   188,838,814x = 165,141,027,494,226,560
5. Step 5: Solve for x
   x = 165,141,027,494,226,560/188,838,814
6. Step 6: Final answer
   x = 874,507,862.00