Finding the Third Proportional to 86,545,890 and 123,752,070

Step by Step Solution

1. Step 1: Write the proportion equation
   86,545,890 : 123,752,070 = 123,752,070 : x
2. Step 2: Convert to fraction form
   86,545,890/123,752,070 = 123,752,070/x
3. Step 3: Cross multiply
   86,545,890x = 123,752,070 × 123,752,070
4. Step 4: Simplify right side
   86,545,890x = 15,314,574,829,284,900
5. Step 5: Solve for x
   x = 15,314,574,829,284,900/86,545,890
6. Step 6: Final answer
   x = 176,953,230.58