Finding the Third Proportional to 85,290,390 and 124,736,854.50

Step by Step Solution

1. Step 1: Write the proportion equation
   85,290,390 : 124,736,854.50 = 124,736,854.50 : x
2. Step 2: Convert to fraction form
   85,290,390/124,736,854.50 = 124,736,854.50/x
3. Step 3: Cross multiply
   85,290,390x = 124,736,854.50 × 124,736,854.50
4. Step 4: Simplify right side
   85,290,390x = 15,559,282,870,554,170
5. Step 5: Solve for x
   x = 15,559,282,870,554,170/85,290,390
6. Step 6: Final answer
   x = 182,427,151.18