Finding the Third Proportional to 91,537,356.94 and 138,157,300.69

Step by Step Solution

1. Step 1: Write the proportion equation
   91,537,356.94 : 138,157,300.69 = 138,157,300.69 : x
2. Step 2: Convert to fraction form
   91,537,356.94/138,157,300.69 = 138,157,300.69/x
3. Step 3: Cross multiply
   91,537,356.94x = 138,157,300.69 × 138,157,300.69
4. Step 4: Simplify right side
   91,537,356.94x = 19,087,439,733,256,288
5. Step 5: Solve for x
   x = 19,087,439,733,256,288/91,537,356.94
6. Step 6: Final answer
   x = 208,520,765.42