Finding the Third Proportional to 86,601,308 and 188,447,940

Step by Step Solution

1. Step 1: Write the proportion equation
   86,601,308 : 188,447,940 = 188,447,940 : x
2. Step 2: Convert to fraction form
   86,601,308/188,447,940 = 188,447,940/x
3. Step 3: Cross multiply
   86,601,308x = 188,447,940 × 188,447,940
4. Step 4: Simplify right side
   86,601,308x = 35,512,626,090,243,600
5. Step 5: Solve for x
   x = 35,512,626,090,243,600/86,601,308
6. Step 6: Final answer
   x = 410,070,320.07