Finding the Third Proportional to 86,009,308 and 185,711,422

Step by Step Solution

1. Step 1: Write the proportion equation
   86,009,308 : 185,711,422 = 185,711,422 : x
2. Step 2: Convert to fraction form
   86,009,308/185,711,422 = 185,711,422/x
3. Step 3: Cross multiply
   86,009,308x = 185,711,422 × 185,711,422
4. Step 4: Simplify right side
   86,009,308x = 34,488,732,261,262,084
5. Step 5: Solve for x
   x = 34,488,732,261,262,084/86,009,308
6. Step 6: Final answer
   x = 400,988,370.48