Finding the Third Proportional to 58,008,538.50 and 83,890,590

Step by Step Solution

1. Step 1: Write the proportion equation
   58,008,538.50 : 83,890,590 = 83,890,590 : x
2. Step 2: Convert to fraction form
   58,008,538.50/83,890,590 = 83,890,590/x
3. Step 3: Cross multiply
   58,008,538.50x = 83,890,590 × 83,890,590
4. Step 4: Simplify right side
   58,008,538.50x = 7,037,631,090,548,100
5. Step 5: Solve for x
   x = 7,037,631,090,548,100/58,008,538.50
6. Step 6: Final answer
   x = 121,320,606.80